| Diagnosis and Testing Refer to Wiring Diagrams Section 417-01, for schematic and connector information. Special Tool(s) | | Terminal Probe Kit 29-011A | Inspection and Testing NOTE:The generic electronic module (GEM) is part of the central junction box (CJB). NOTE:Before reading out the vehicle-specific data make sure that all electrical connections in the vehicle are reconnected so that the module and WDS can communicate correctly. - Verify the customer concern.
- Visually inspect for obvious signs of electrical (or mechanical) damage.
Visual Inspection Chart | Electrical | - Fuse(s)
- Bulb(s)
- Headlamp
- Connector
- Switch
- Wiring harness
| - If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step. CHECK system operates correctly
- If the concern persists after the visual inspection, PERFORM a fault diagnosis with the diagnostic unit and RECTIFY any displayed faults in accordance with the displayed fault description. CHECK system operates correctly
- For vehicles with no stored fault(s), PROCEED in accordance with the symptom chart according to the fault symptom.
- After testing or rectifying the fault and after completion of operations, READ OUT the fault memories of all vehicle modules and DELETE any stored faults. READ OUT all fault memories again after a road test.
Trouble Code Table - Generic Electronic Module (GEM) | DTC | Description | Action | | 9D0613 | Circuit of left-hand turn signal lamps faulty. | REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 9D0611 | Circuit of left-hand turn signal lamps faulty (short to ground). | REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 91D311 | Circuit of left-hand side turn signal lamp faulty (short to ground). | REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 91D313 | Circuit of left-hand side turn signal lamp faulty (open circuit). | REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 9D0711 | Circuit of right-hand turn signal lamps faulty (short to ground). | REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 9D0713 | Circuit of right-hand turn signal lamps faulty. | REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 91CB11 | Circuit of right-hand side turn signal lamp faulty (short to ground). | REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 91CB13 | Circuit of right-hand side turn signal lamp faulty (open circuit). | REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 913C11 | Circuit of hazard warning switch illumination faulty (short to ground). | REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 913C15 | Circuit of hazard warning switch illumination faulty (short to voltage or open circuit). | REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 9D3524 | Circuit of hazard warning switch faulty. | REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 913007 | Light switch unit, component fault. | REFER TO: Symptom chart. | | 9D0011 | Circuit of left-hand headlamp faulty (short to ground). | REFER TO: Symptom chart. | | 9D0111 | Circuit of right-hand headlamp faulty (short to ground). | REFER TO: Symptom chart. | | 9D0013 | Circuit of left-hand headlamp faulty (open circuit). | REFER TO: Symptom chart. | | 9D0113 | Circuit of right-hand headlamp faulty (open circuit). | REFER TO: Symptom chart. | | 909811 | Circuit of left-hand marker lamp faulty (short to ground). | REFER to: Parking, Rear and License Plate Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 909813 | Circuit of left-hand marker lamp faulty (open circuit). | REFER to: Parking, Rear and License Plate Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 909911 | Circuit of right-hand marker lamp faulty (short to ground). | REFER to: Parking, Rear and License Plate Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 909913 | Circuit of right-hand marker lamp faulty (open circuit). | REFER to: Parking, Rear and License Plate Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 909B13 | Circuit of license plate lamps faulty. | REFER to: Parking, Rear and License Plate Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 909B11 | Circuit of license plate lamps faulty (short to ground). | REFER to: Parking, Rear and License Plate Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 9A7913 | Circuit of rear fog lamps faulty. | REFER to: Fog Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 9A7911 | Circuit of rear fog lamps faulty (short to ground). | REFER to: Fog Lamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 402311. 402313 | Stop lamp circuit faulty. | REFER to: Stoplamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 911511 | Circuit of high-mounted stop lamp faulty (short to ground). | REFER to: Stoplamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 911513 | Circuit of high-mounted stop lamp faulty (open circuit). | REFER to: Stoplamps (417-01 Exterior Lighting, Diagnosis and Testing). | | 90AD09 | Rain sensor/light sensor, component fault. | REFER to: Autolamps (417-01 Exterior Lighting, Diagnosis and Testing), Wipers and Washers (501-16 Wipers and Washers, Diagnosis and Testing). | | 90AD04 | Internal circuit of rain sensor/light sensor faulty. | REFER to: Autolamps (417-01 Exterior Lighting, Diagnosis and Testing), Wipers and Washers (501-16 Wipers and Washers, Diagnosis and Testing). | Diagnostic Trouble Code table - lighting control module | DTC | Description | Action | | B1041-54 | Headlamp range control, faulty configuration | RE-CALIBRATE the lighting control module with the diagnostic unit. CHECK system operates correctly | | B1041-55 | Headlamp range control, internal fault | CLEAR the fault memory. If the fault occurs again after a functional test, RENEW the adaptive front lighting module. | | B10AE-11 | Motor - headlamp range control, short to ground | REFER to: Headlamp Leveling (417-01 Exterior Lighting, Diagnosis and Testing). | | B10AE-12 | Motor - headlamp range control, short to voltage supply | REFER to: Headlamp Leveling (417-01 Exterior Lighting, Diagnosis and Testing). | | B10AE-64 | Signal from headlamp range control motor faulty | REFER to: Headlamp Leveling (417-01 Exterior Lighting, Diagnosis and Testing). | | B11A2-11 | Circuit of headlamp switch faulty (short to ground or open circuit).= | REFER TO: Symptom chart. | | B11A2-12 | Circuit of headlamp switch faulty (short to voltage). | REFER TO: Symptom chart. | | B1A57-01 | Left headlamp, headlamp range control motor | REFER to: Headlamp Leveling (417-01 Exterior Lighting, Diagnosis and Testing). | | B1A57-87 | Left headlamp, headlamp range control motor | REFER to: Headlamp Leveling (417-01 Exterior Lighting, Diagnosis and Testing). | | B1A58-01 | Right headlamp, headlamp range control motor | REFER to: Headlamp Leveling (417-01 Exterior Lighting, Diagnosis and Testing). | | B1A58-87 | Right headlamp, headlamp range control motor | REFER to: Headlamp Leveling (417-01 Exterior Lighting, Diagnosis and Testing). | | B1A59-11 | Power supply of angle of inclination sensor, short to ground | REFER to: Headlamp Leveling (417-01 Exterior Lighting, Diagnosis and Testing). | | B1A59-12 | Power supply of angle of inclination sensor, short to voltage supply | REFER to: Headlamp Leveling (417-01 Exterior Lighting, Diagnosis and Testing). | | B1A98-83 | LIN bus | REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing). | | B1A98-86 | LIN bus | REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing). | | B1A98-88 | Circuit of LIN bus faulty | REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing). | | B1C98-11 | Circuit of left cornering light, short to ground | REFER TO: Symptom chart. | | B1C98-13 | Circuit of left cornering light, open circuit | REFER TO: Symptom chart. | | B1C99-11 | Circuit of right cornering light, short to ground | REFER TO: Symptom chart. | | B1C99-13 | Circuit of right cornering light, open circuit | REFER TO: Symptom chart. | | B1D64-01 | Status of adaptive front lighting servo motor faulty | RENEW left-hand headlamp. | | B1D64-87 | No communication possible with left-hand adaptive front lighting servo motor | REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing). RENEW left-hand headlamp. | | B1D65-01 | Status of adaptive front lighting servo motor faulty | RENEW right-hand headlamp. | | B1D65-87 | No communication possible with right-hand adaptive front lighting servo motor | REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing). RENEW right-hand headlamp. | | U0001-88 | No communications possible via the HS CAN bus | REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing). | | U0122-00 | No communication possible with the integrated vehicle dynamics control (IVDC) module | CHECK the integrated vehicle dynamics control (IVDC) module.
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
| | U0126-00 | No communication possible with the steering angle sensor module | CHECK the steering wheel angle sensor (SAS).
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
| | U0140-00 | No communication possible with the central junction box (CJB) | CHECK the CJB.
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
| | U2100-00 | Incomplete vehicle configuration parameters | REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing). | | U2101-00 | Vehicle configuration parameters faulty | CHECK the vehicle configuration parameters.
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
| | U3003-16 | Battery voltage too low, voltage less than 10.5 volts | CHECK the battery and charging system. | | U3003-17 | Battery voltage too high, voltage more than 16 volts | CHECK the battery and charging system. | | U3003-62 | Power supply to CJB too low. | CHECK the battery and charging system. | Symptom chart Symptom chart | Symptom | Possible Sources | Action | | Dipped beam and main beam inoperative | * Fuse(s) * Circuit(s) * Central junction box (CJB): * Engine junction box (EJB) | * | | The Low Beams Are Inoperative | * Central junction box (CJB): | * CHECK central junction box (CJB) with diagnostics unit and if necessary RENEW. | | The High Beams Are Inoperative | * Circuit(s) * Steering wheel/steering column module * High beam headlamp switch * Central junction box (CJB): | * | | One low beam headlamp is inoperative | * Fuse * Circuit(s) * Conventional headlamp * Xenon headlamp * Central junction box (CJB): | * | | One high beam headlamp is inoperative | * Fuse * Circuit(s) * Conventional headlamp * Xenon headlamp * Central junction box (CJB): | * | | The Headlamps Are On Continuously | * Circuit(s) * Lights control module * Steering wheel/steering column module * High beam headlamp switch * Conventional headlamp * Xenon headlamp * Central junction box (CJB): | * | | Headlamp flasher inoperative (high beam OK) | * Circuit(s) * Steering wheel/steering column module (SWM) * High beam headlamp switch | * | | Adaptive front lighting inoperative | * No communication with the adaptive front lighting module
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
* Circuit(s) * Adaptive front lighting module * Steering wheel rotation sensor. | * | | Automatic headlamps inoperative | * Circuit(s) * Steering wheel/steering column module (SWM) * Rain sensor | * REFER to: Autolamps (417-01 Exterior Lighting, Diagnosis and Testing). | | Cornering lights inoperative or permanently on | * No communication with the adaptive front lighting module
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
* Circuit(s) * Steering wheel/steering column module (SWM) * Steering wheel rotation sensor. * Adaptive front lighting module | * | Pinpoint test NOTE:Use a digital multimeter for all electrical measurements. | PINPOINT TEST A : DIPPED BEAM AND MAIN BEAM INOPERATIVE | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | A1: CHECK FUSE F17 (60 A) (EJB) | | | 1 Ignition switch in position 0. | | | 2 Disconnect fuse F17 (60 A) (EJB). | | | 3 CHECK fuse F17 (60 A) (EJB). | | | Is the fuse OK.? Yes No RENEW fuse F17 (60 A) (EJB). CHECK system operates correctly If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly | | A2: CHECK THE VOLTAGE AT FUSE F17 (60 A) (EJB) | | | 1 Connect fuse F17 (60 A) (EJB). | | | 2 Ignition switch in position II. | | | 3 Measure the voltage between fuse F17 (60A) (EJB) and ground. | | | Does meter display battery voltage? Yes No LOCATE AND RECTIFY the break in the voltage supply of fuse F17 (60 A) (EJB) using the Wiring Diagrams. CHECK system operates correctly | | A3: CHECK FUSE F18 (60 A) (EJB) | | | 1 Ignition switch in position 0. | | | 2 Disconnect fuse F18 (60 A) (EJB). | | | 3 CHECK fuse F18 (60 A) (EJB). | | | Is the fuse OK.? Yes No RENEW fuse F18 (60 A) (EJB). CHECK system operates correctly If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly | | A4: CHECK THE VOLTAGE AT FUSE F18 (60 A) (EJB) | | | 1 Connect fuse F18 (60 A) (EJB). | | | 2 Ignition switch in position II. | | | 3 Measure the voltage between fuse F18 (60 A) (EJB) and ground. | | | Does meter display battery voltage? Yes No LOCATE AND RECTIFY the break in the voltage supply of fuse F18 (60 A) (EJB) using the Wiring Diagrams. CHECK system operates correctly | | A5: CHECK THE VOLTAGE SUPPLY TO THE CENTRAL JUNCTION BOX (CJB) FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect CJB from connector C1BP02G. | | | 3 Ignition switch in position II. | | | 4 Measure the voltage between the CJB, connector C1BP02G, pin 1, circuit SBB17A (RD), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No LOCATE and RECTIFY the break in the circuit between the CJB and fuse F17 (60 A) (EJB) with the aid of the Wiring Diagrams. CHECK system operates correctly | | A6: CHECK THE GROUND CONNECTION OF THE CENTRAL JUNCTION BOX (CJB) FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect CJB from connector C1BP02A. | | | 3 Measure the resistance between the CJB, connector C1BP02A, pin 54, circuit GD123F (BK/GY), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes No LOCATE and RECTIFY the break in the circuits between the CJB and ground connection G1D132B with the aid of the Wiring Diagrams. CHECK system operates correctly | | A7: CHECK THE GROUND CONNECTION OF THE CENTRAL JUNCTION BOX (CJB) FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect CJB from connector C1BP02B. | | | 3 Measure the resistance between the CJB, connector C1BP02B, pin 65: - LHD: circuit GD140J (BK/GN), wiring harness side and ground.
- RHD: circuit GD134U (BK/VT), wiring harness side and ground.
| | | Is a resistance of less than 2 Ohms registered? Yes RENEW THE CJB. CHECK system operates correctly No - LHD: LOCATE and RECTIFY the break in the circuits between the CJB and ground connection G3D138 with the aid of the Wiring Diagrams. CHECK system operates correctly - RHD: LOCATE and RECTIFY the break in the circuits between the CJB and ground connection G3D133 with the aid of the Wiring Diagrams. CHECK system operates correctly | | PINPOINT TEST B : THE HIGH BEAMS ARE INOPERATIVE | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | B1: DETERMINE THE FAULT CONDITION | | | 1 Ignition switch in position II. | | | 2 CHECK the high beam headlamps after every step. | | | 3 OPERATE headlamp flasher. | | | 4 TURN ON the high beam. | | | Do the high beam headlamps only work in one switch position? Yes No | | B2: CHECK FUSE F9 (15 A) (CJB). | | | 1 Ignition switch in position 0. | | | 2 Disconnect Fuse F9 (15 A) (CJB). | | | 3 CHECK Fuse F9 (15 A) (CJB). | | | Is the fuse OK.? Yes No RENEW fuse F9 (15 A) (CJB). CHECK system operates correctly If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly | | B3: CHECK THE VOLTAGE SUPPLY TO FUSE F9 (15 A) (CJB) FOR OPEN CIRCUIT | | | 1 Connect Fuse F9 (15 A) (CJB). | | | 2 Ignition switch in position II. | | | 3 Measure the voltage between fuse F9 (15 A) (CJB) and ground. | | | Does the meter display battery voltage? Yes No LOCATE AND RECTIFY the break in the voltage supply of fuse F9 (15 A) (CJB) using the Wiring Diagrams. CHECK system operates correctly | | B4: CHECK FUSE F7 (7.5 A) (CJB). | | | 1 Ignition switch in position 0. | | | 2 Disconnect Fuse F7 (7.5 A) (CJB). | | | 3 CHECK Fuse F7 (7.5 A) (CJB). | | | Is the fuse OK.? Yes No RENEW fuse F7 (7.5 A) (CJB). CHECK system operates correctly If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly | | B5: CHECK THE VOLTAGE SUPPLY TO FUSE F7 (7.5 A) (CJB) FOR OPEN CIRCUIT | | | 1 Connect Fuse F7 (7.5 A) (CJB). | | | 2 Ignition switch in position II. | | | 3 Measure the voltage between fuse F7 (7.5 A) (CJB) and ground. | | | Does meter display battery voltage? Yes No LOCATE AND RECTIFY the break in the voltage supply of fuse F7 (7.5 A) (CJB) using the Wiring Diagrams. CHECK system operates correctly | | B6: CHECK THE VOLTAGE SUPPLY TO THE STEERING WHEEL/STEERING COLUMN MODULE FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Steering wheel/steering column module from connector C2LS41. | | | 3 Measure the resistance between the CJB, connector C1BP02C, pin 70, circuit SBP07A (WH/RD), wiring harness side and the steering wheel/steering column module, connector C2LS41, pin 1, circuit SBP07A (WH/RD), wiring harness side. | | | Is a resistance of less than 2 Ohms registered? Yes No LOCATE and RECTIFY the break in the circuits between the steering wheel/steering column module and fuse F7 (7.5 A) (CJB) with the aid of the Wiring Diagrams. CHECK system operates correctly | | B7: CHECK THE GROUND CONNECTION OF THE STEERING WHEEL/STEERING COLUMN MODULE FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the steering wheel/steering column module, connector C2LS41, pin 14, circuit GD138AY (BK/WH), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes No LOCATE and RECTIFY the break in the circuits between the steering wheel/steering column module and ground connection G6D139 with the aid of the Wiring Diagrams. CHECK system operates correctly | | B8: RULE OUT THE HIGH BEAM HEADLAMP SWITCH AS THE CAUSE OF THE FAULT | | | 1 CHECK the high beam headlamp switch according to the component tests at the end of this subsection: | | | Is the high beam headlamp switch OK? ? Yes CHECK the CJB and the steering wheel/steering column module with the aid of WDS and RENEW if necessary. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No RENEW the high beam headlamp switch. CHECK system operates correctly | | PINPOINT TEST C : ONE LOW BEAM HEADLAMP IS INOPERATIVE | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | C1: DETERMINE THE CAUSE OF THE FAULT | | | 1 Ignition switch in position II. | | | 2 SWITCH ON the dipped beam. | | | Is the left-hand low beam inoperative? Yes No | | C2: CHECK THE VOLTAGE SUPPLY OF THE LEFT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Left-hand headlamp from connector C1LF08. | | | 3 Ignition switch in position II. | | | 4 SWITCH ON the dipped beam. | | | 5 Measure the voltage between left-hand headlamp, connector C1LF08, pin 10, circuit CLF04A (BN/BU), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No | | C3: CHECK THE VOLTAGE SUPPLY AT THE LEFT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect CJB from connector C1BP02A. | | | 3 Measure the resistance between the left-hand headlamp, connector C1LF08, pin 10, circuit CLF04A (BN/BU), wiring harness side and the CJB, connector C1BP02A, pin 76, circuit CLF04A (BN/BU), wiring harness side. | | | Is a resistance of less than 2 Ohms registered? Yes No LOCATE and RECTIFY the break in the circuit between the headlamp and the CJB using the Wiring Diagrams. CHECK system operates correctly | | C4: CHECK CIRCUIT BETWEEN THE CJB AND LEFT-HAND HEADLAMP FOR A SHORT TO GROUND | | | 1 Measure the resistance between the CJB, connector C1BP02A, pin 76, circuit CLF04A (BN/BU), wiring harness side and ground. | | | Is a resistance of more than 10,000 Ohm measured? Yes CHECK the CJB, if necessary INSTALL a new one. CHECK system operates correctly No LOCATE and RECTIFY the short to ground in circuit CLF04A (BN/BU) between the headlamp and the CJB using the Wiring Diagrams. CHECK system operates correctly | | C5: CHECK GROUND SUPPLY OF LEFT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the left-hand headlamp, connector C1LF08, pin 7, circuit GD130T (BK/YE), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW headlamp. CHECK system operates correctly No LOCATE and RECTIFY the break in circuit GD130T (BK/YE) between the headlamp and soldered connection SP371 using the Wiring Diagrams. CHECK system operates correctly | | C6: CHECK THE VOLTAGE SUPPLY OF THE RIGHT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Right-hand headlamp from connector C1LF09. | | | 3 Ignition switch in position II. | | | 4 SWITCH ON the dipped beam. | | | 5 Measure the voltage between the right-hand headlamp, connector C1LF09, pin 10, circuit CLF05A (BU/GN), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No | | C7: CHECK THE VOLTAGE SUPPLY OF THE RIGHT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect CJB from connector C1BP02A. | | | 3 Measure the resistance between the right-hand headlamp, connector C1LF09, pin 10, circuit CLF05A (BU/GN), wiring harness side and the CJB, connector C1BP02A, pin 75, circuit CLF05A (BU/GN), wiring harness side. | | | Is a resistance of less than 2 Ohms registered? Yes No LOCATE and RECTIFY the break in the circuit between the headlamp and the CJB using the Wiring Diagrams. CHECK system operates correctly | | C8: CHECK CIRCUIT BETWEEN THE CJB AND RIGHT-HAND HEADLAMP FOR A SHORT TO GROUND | | | 1 Measure the resistance between the CJB, connector C1BP02A, pin 75, circuit CLF05A (BU/GN), wiring harness side and ground. | | | Is a resistance of more than 10,000 Ohm measured? Yes CHECK the CJB, if necessary INSTALL a new one. CHECK system operates correctly No LOCATE and RECTIFY the short to ground in circuit CLF05A (BU/GN) between the headlamp and the CJB using the Wiring Diagrams. CHECK system operates correctly | | C9: CHECK THE GROUND CONNECTION TO THE RIGHT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the right-hand headlamp, connector C1LF09, pin 7, circuit GD132M (BK/VT), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW headlamp. CHECK system operates correctly No LOCATE and RECTIFY the break in circuit GD132M (BK/VT) between the headlamp and soldered connection SP380 using the Wiring Diagrams. CHECK system operates correctly | | PINPOINT TEST D : ONE HIGH BEAM HEADLAMP IS INOPERATIVE | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | D1: DETERMINE THE CAUSE OF THE FAULT | | | 1 Ignition switch in position II. | | | 2 SWITCH ON the dipped beam. | | | 3 TURN ON the high beam. | | | Is the left-hand high beam inoperative? Yes No | | D2: CHECK THE VOLTAGE SUPPLY OF THE LEFT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Left-hand headlamp from connector C1LF08. | | | 3 Ignition switch in position II. | | | 4 SWITCH ON the dipped beam. | | | 5 TURN ON the high beam. | | | 6 Measure the voltage between the left-hand headlamp, connector C1LF08, pin 5, circuit CLF02A (GY/BN), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No | | D3: CHECK THE VOLTAGE SUPPLY AT THE LEFT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect CJB from connector C1BP02A. | | | 3 Measure the resistance between the left-hand headlamp, connector C1BP02A, pin 5, circuit CLF02A (GY/BN), wiring harness side and the CJB, connector C1BP02A, pin 74, circuit CLF02A (GY/BN), wiring harness side. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW THE CJB. CHECK system operates correctly No LOCATE and RECTIFY the break in the circuit between the headlamp and the CJB using the Wiring Diagrams. CHECK system operates correctly | | D4: CHECK GROUND SUPPLY OF LEFT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the left-hand headlamp, connector C1LF08, pin 7, circuit GD130T (BK/YE), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW headlamp. CHECK system operates correctly No LOCATE and RECTIFY the break in circuit GD130T (BK/YE) between the headlamp and soldered connection SP371 using the Wiring Diagrams. CHECK system operates correctly | | D5: CHECK THE VOLTAGE SUPPLY OF THE RIGHT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Right-hand headlamp from connector C1LF09. | | | 3 Ignition switch in position II. | | | 4 SWITCH ON the dipped beam. | | | 5 TURN ON the high beam. | | | 6 Measure the voltage between the right-hand headlamp, connector C1LF09 , pin 5, circuit CLF03A (VT/OG), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No | | D6: CHECK THE VOLTAGE SUPPLY OF THE RIGHT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect CJB from connector C1BP02A. | | | 3 Measure the resistance between the right-hand headlamp, connector C1LF09, pin 5, circuit CLF03A (VT/OG), wiring harness side and the CJB, connector C1BP02A, pin 75, circuit CLF03A (VT/OG), wiring harness side. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW THE CJB. CHECK system operates correctly No LOCATE and RECTIFY the break in the circuit between the headlamp and the CJB using the Wiring Diagrams. CHECK system operates correctly | | D7: CHECK THE GROUND CONNECTION TO THE RIGHT-HAND HEADLAMP FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the right-hand headlamp, connector C1LF09, pin 7, circuit GD132M (BK/VT), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW headlamp. CHECK system operates correctly No LOCATE and RECTIFY the break in circuit GD132M (BK/VT) between the headlamp and soldered connection SP380 using the Wiring Diagrams. CHECK system operates correctly | | PINPOINT TEST E : THE HEADLAMPS ARE ON CONTINUOUSLY | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | E1: DETERMINE THE FAULT CONDITION | | | 1 Ignition switch in position II. | | | 2 Lights control module set to OFF. | | | 3 CHECK the headlamp. | | | Do the low beams illuminate continuously? Yes No | | E2: DETERMINE VEHICLE EQUIPMENT LEVEL | | | 1 Find out whether the vehicle is fitted with the daytime running lamps (DRL) option. | | | Does the vehicle have daytime running lamps? Yes CHECK the software configuration of the GEM with the aid of WDS and update it as required. CHECK system operates correctly If the concern persists: GO to E3. No | | E3: CHECK FUSE F33 (5 A) (EJB) | | | 1 Ignition switch in position 0. | | | 2 Disconnect fuse F33 (5 A) (EJB). | | | 3 CHECK fuse F33 (5 A) (EJB). | | | Is the fuse OK.? Yes No RENEW fuse F33 (5 A) (EJB). CHECK system operates correctly If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly | | E4: CHECK THE VOLTAGE SUPPLY TO FUSE F33 (5 A) (EJB) FOR OPEN CIRCUIT | | | 1 Connect fuse F33 (5 A) (EJB). | | | 2 Ignition switch in position II. | | | 3 Measure the voltage between fuse F33 (5 A) (EJB) and ground. | | | Does the meter display battery voltage? Yes No LOCATE AND RECTIFY the break in the voltage supply of fuse F33 (5 A) (EJB) with the aid of the wiring diagrams. CHECK system operates correctly | | E5: CHECK THE VOLTAGE SUPPLY TO THE LIGHTS CONTROL MODULE FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Lights control module from connector C2LF23D. | | | 3 Ignition switch in position II. | | | 4 Measure the voltage between the lights control module, connector C2LF23D, pin 1, circuit SBB33B (RD), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No LOCATE and RECTIFY the break in the circuits between fuse F33 (5 A) (EJB) and the lights control module with the aid of the wiring diagrams. CHECK system operates correctly | | E6: CHECK THE GROUND CONNECTION OF THE LIGHTS CONTROL MODULE FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the lights control module, connector C2LF23D, pin 5, circuit GD133BT (BK), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes No LOCATE and RECTIFY the break in the circuits between the lights control module and ground connection G3D134 with the aid of the Wiring Diagrams. CHECK system operates correctly | | E7: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE LIGHTING CONTROL MODULE AND THE CENTRAL JUNCTION BOX (CJB) FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect CJB from connector G3D134 . | | | 3 Measure the resistance between the lighting control module, connector C2LF23D, pin 6, circuit VLF25A (GN/VT), wiring harness side and the CJB, connector C1BP02C, pin 52, circuit VLF25A (GN/VT), wiring harness side. | | | Is a resistance of less than 2 Ohms registered? Yes No LOCATE and RECTIFY the break in circuit VLF25A (GN/VT) between the lighting control module and the CJB with the aid of the Wiring Diagrams. CHECK system operates correctly | | E8: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE LIGHTS CONTROL MODULE AND THE CENTRAL JUNCTION BOX (CJB) FOR SHORT TO BATTERY VOLTAGE | | | 1 Disconnect Lights control module from connector C2LF23D. | | | 2 Disconnect CJB from connector G3D134 . | | | 3 Ignition switch in position II. | | | 4 Measure the voltage between the lights control module, connector C2LF23D, pin 6, circuit VLF25A (GN/VT), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No LOCATE and RECTIFY the short to battery voltage in circuit VLF25A (GN/VT) between the lighting control module and the CJB with the aid of the Wiring Diagrams. CHECK system operates correctly | | E9: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE LIGHTING CONTROL MODULE AND THE CENTRAL JUNCTION BOX (CJB) FOR SHORT TO GROUND | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the lights control module, connector C2LF23D, pin 6, circuit VLF25A (GN/VT), wiring harness side and ground. | | | Is a resistance of more than 10,000 Ohm measured? Yes No LOCATE and RECTIFY the short to ground in circuit VLF25A (GN/VT) between the lighting control module and the CJB with the aid of the Wiring Diagrams. CHECK system operates correctly | | E10: RULE OUT THE CENTRAL JUNCTION BOX (CJB) AS CAUSE OF THE FAULT | | | 1 Ignition switch in position 0. | | | 2 Disconnect CJB from connector C1BP02A. | | | 3 Ignition switch in position II. | | | 4 CHECK the headlamp. | | | Is the left-hand low beam permanently lit? Yes - Left-hand low beam permanently lit: LOCATE and RECTIFY the short to battery voltage in circuit CLF04A (BN/BU) between the CJB and the headlamp using the Wiring Diagrams. CHECK system operates correctly No - Right-hand low beam permanently lit: LOCATE and RECTIFY the short to battery voltage in circuit CLF05A (BU/GN) between the CJB and the headlamp using the Wiring Diagrams. CHECK system operates correctly - Left-hand main beam permanently lit: LOCATE and RECTIFY the short to battery voltage in circuit CLF02A (GY/BN) between the CJB and the headlamp using the Wiring Diagrams. CHECK system operates correctly - Right-hand high beam permanently lit: LOCATE and RECTIFY the short to battery voltage in circuit CLF03A (VT/OG) between the CJB and the headlamp using the Wiring Diagrams. CHECK system operates correctly - None of the headlamps is permanently lit: RENEW THE CJB. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
| | PINPOINT TEST F : HEADLAMP FLASHER NOT FUNCTIONING | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | F1: DETERMINE THE CONDITIONS UNDER WHICH THE FAULT OCCURS | | | 1 Ignition switch in position II. | | | 2 SWITCH ON the low beam. | | | 3 CHECK the headlamps in every setting of the switch. | | | 4 OPERATE headlamp flasher. | | | 5 TURN ON the high beam. | | | Are the high beam and headlamp flasher inoperative? Yes No | | F2: RULE OUT THE HIGH BEAM HEADLAMP SWITCH AS THE CAUSE OF THE FAULT | | | 1 CHECK the high beam headlamp switch according to the component tests at the end of this subsection: | | | Is the high beam headlamp switch OK? ? Yes CHECK the CJB and the steering wheel/steering column module with the aid of WDS and RENEW if necessary. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No RENEW the high beam headlamp switch. CHECK system operates correctly | | PINPOINT TEST G : ADAPTIVE FRONT LIGHTING INOPERATIVE | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | G1: DETERMINE THE FAULT CONDITION | NOTE:The adaptive front lighting module only adjusts the headlamps when the vehicle is driving at a speed greater than 3km/h. | | | 1 Perform a road test to determine the exact conditions under which the fault occurs. | | | Is the adaptive lighting inoperative on the left-hand side? Yes The adaptive lighting is inoperative on the left-hand side: GO to G12. No - The adaptive lighting is inoperative on the right-hand side: GO to G15. - The adaptive lighting is inoperative on both sides: GO to G2. | | G2: CHECK FUSE F43 (5 A) (EJB) | | | 1 Ignition switch in position 0. | | | 2 Disconnect fuse F43 (5 A) (EJB). | | | 3 CHECK fuse F43 (5 A) (EJB). | | | Is the fuse OK.? Yes No RENEW fuse F43 (5 A) (EJB). CHECK system operates correctly If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly | | G3: CHECK THE VOLTAGE SUPPLY TO FUSE F43 (5 A) (EJB) FOR OPEN CIRCUIT | | | 1 Connect fuse F43 (5 A) (EJB). | | | 2 Ignition switch in position II. | | | 3 Measure the voltage between fuse F43 (5 A) (EJB) and ground. | | | Does the meter display battery voltage? Yes No LOCATE AND RECTIFY the break in the voltage supply of fuse F43 (5 A) (EJB) using the Wiring Diagrams. CHECK system operates correctly | | G4: CHECK FUSE F39 (15 A) (EJB) | | | 1 Ignition switch in position 0. | | | 2 Disconnect fuse F39 (15 A) (EJB). | | | 3 CHECK fuse F39 (15 A) (EJB). | | | Is the fuse OK.? Yes No RENEW fuse F39 (15 A) (EJB). CHECK system operates correctly If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly | | G5: CHECK THE VOLTAGE SUPPLY TO FUSE F39 (15 A) (EJB) FOR OPEN CIRCUIT | | | 1 Connect fuse F39 (15 A) (EJB). | | | 2 Ignition switch in position II. | | | 3 Measure the voltage between fuse F39 (15 A) (EJB) and ground. | | | Does the meter display battery voltage? Yes No LOCATE AND RECTIFY the break in the voltage supply of fuse F39 (15 A) (EJB) using the Wiring Diagrams. CHECK system operates correctly | | G6: CHECK VOLTAGE SUPPLY TO THE ADAPTIVE FRONT LIGHTING MODULE FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Adaptive front lighting module from connector C2LF23A. | | | 3 Ignition switch in position II. | | | 4 Measure the voltage between the adaptive front lighting module, connector C2LF23A, pin 10, circuit CBB43C (GY), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No LOCATE and RECTIFY the break in the circuit(s) between fuse F43 (5 A) (EJB) and the adaptive front lighting module with the aid of the wiring diagrams. CHECK system operates correctly | | G7: CHECK VOLTAGE SUPPLY TO THE ADAPTIVE FRONT LIGHTING MODULE FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Adaptive front lighting module from connector C2LF23B. | | | 3 Ignition switch in position II. | | | 4 Measure the voltage between the adaptive front lighting module, connector C2LF23B, pin 1, circuit CBB39D (VT/WH), wiring harness side and ground. | | | 5 Measure the voltage between the adaptive front lighting module, connector C2LF23B, pin 2, circuit CBB39G (VT/WH), wiring harness side and ground. | | | Is battery voltage measured in both cases? Yes No - If battery voltage is not measured during one of the measurements: LOCATE and RECTIFY the break in the relevant circuit(s) between soldered connection SP174 and the adaptive front lighting module with the aid of the Wiring Diagrams. CHECK system operates correctly - If battery voltage is not measured during both of the measurements: LOCATE and RECTIFY the break in the circuit(s) between fuse F39 (15 A) (EJB) and soldered connection SP174 with the aid of the Wiring Diagrams. CHECK system operates correctly | | G8: CHECK THE GROUND CONNECTION OF THE ADAPTIVE FRONT LIGHTING MODULE FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the adaptive front lighting module, connector C2LF23A, pin 1, circuit GD138BU (BK/WH), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes No LOCATE and RECTIFY the break in the circuit(s) between the adaptive front lighting module and soldered connection SP518 with the aid of the wiring diagrams. CHECK system operates correctly | | G9: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE ADAPTIVE FRONT LIGHTING MODULE AND THE HEADLAMP FOR SHORT TO BATTERY VOLTAGE | | | 1 Ignition switch in position 0. | | | 2 Disconnect Adaptive front lighting module from connector C2LF23B. | | | 3 Disconnect Left-hand headlamp from connector C1LF08. | | | 4 Disconnect Right-hand headlamp from connector C1LF09. | | | 5 Ignition switch in position II. | | | 6 Measure the voltage between the adaptive front lighting module, connector C2LF23A, pin 17, circuit VLF32B (YE), wiring harness side and ground. | | | Does the meter display battery voltage? Yes LOCATE and RECTIFY the short to battery voltage in the circuits connected to the adaptive front lighting module, connector C2LF23A, pin 17 using the Wiring Diagrams. CHECK system operates correctly No | | G10: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE ADAPTIVE FRONT LIGHTING MODULE AND THE HEADLAMP FOR SHORT TO GROUND | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the adaptive front lighting module, connector C2LF23A, pin 17, circuit VLF32B (YE), wiring harness side and ground. | | | Is a resistance of more than 10,000 Ohm measured? Yes No LOCATE and RECTIFY the short to ground in the circuits connected to the adaptive front lighting module, connector C2LF23A, pin 17 using the Wiring Diagrams. CHECK system operates correctly | | G11: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE ADAPTIVE FRONT LIGHTING MODULE AND THE HEADLAMP FOR OPEN CIRCUIT | | | 1 Measure the resistance between the adaptive front lighting module, connector C2LF23A, pin 17, circuit VLF32B (YE), wiring harness side and the left-hand headlamp, connector C1LF08, pin 14, circuit VLF23A (YE), wiring harness side. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW the adaptive front lighting module. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No LOCATE and RECTIFY the break in the circuit(s) between the adaptive front lighting module and intermediate connection C21A/B with the aid of the Wiring Diagrams. CHECK system operates correctly | | G12: CHECK THE POWER SUPPLY TO THE LEFT-HAND HEADLAMP FOR OPEN CIRCUIT (ADJUSTMENT UNIT FOR THE ADAPTIVE LIGHTING) | | | 1 Ignition switch in position 0. | | | 2 Disconnect Left-hand headlamp from connector C1LF08. | | | 3 Ignition switch in position II. | | | 4 Measure the voltage between left-hand headlamp, connector C1LF08, pin 13, circuit CBB39E (VT/WH), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No LOCATE and RECTIFY the break in the circuit between the headlamp and soldered connection SP172 using the wiring diagrams. CHECK system operates correctly | | G13: CHECK THE GROUND CONNECTION OF THE LEFT-HAND HEADLAMP FOR OPEN CIRCUIT (ADJUSTMENT UNIT FOR THE ADAPTIVE LIGHTING) | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the left-hand headlamp, connector C1LF08, pin 11, circuit GD130AE (BK/YE), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes No LOCATE and RECTIFY the break in the circuit(s) between the headlamp and soldered connection SP371 with the aid of the Wiring Diagrams. CHECK system operates correctly | | G14: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE LEFT-HAND HEADLAMP AND INTERMEDIATE CONNECTION C21A/B FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Adaptive front lighting module from connector C2LF23A. | | | 3 Measure the resistance between the adaptive front lighting module, connector C2LF23A, pin 17, circuit VLF32B (YE), wiring harness side and the left-hand headlamp, connector C1LF08, pin 14, circuit VLF32A (YE), wiring harness side. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW headlamp. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No LOCATE and RECTIFY the break in the circuit(s) between the left-hand headlamp and intermediate connection C21A/B with the aid of the wiring diagrams. CHECK system operates correctly | | G15: CHECK THE POWER SUPPLY TO THE RIGHT-HAND HEADLAMP FOR OPEN CIRCUIT (ADJUSTMENT UNIT FOR THE ADAPTIVE LIGHTING) | | | 1 Ignition switch in position 0. | | | 2 Disconnect Right-hand headlamp from connector C1LF09. | | | 3 Ignition switch in position II. | | | 4 Measure the voltage between the right-hand headlamp, connector C1LF09, pin 13, circuit CBB39F (VT/WH), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No LOCATE and RECTIFY the break in the circuit between the headlamp and soldered connection SP172 using the wiring diagrams. CHECK system operates correctly | | G16: CHECK THE GROUND CONNECTION OF THE RIGHT-HAND HEADLAMP FOR OPEN CIRCUIT (ADJUSTMENT UNIT FOR THE ADAPTIVE LIGHTING) | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the right-hand headlamp, connector C1LF09, pin 11, circuit GD130W (BK/VT), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes No LOCATE and RECTIFY the break in the circuit(s) between the headlamp and soldered connection SP380 with the aid of the Wiring Diagrams. CHECK system operates correctly | | G17: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE RIGHT-HAND HEADLAMP AND INTERMEDIATE CONNECTION C21A/B FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Adaptive front lighting module from connector C2LF23A. | | | 3 Measure the resistance between the adaptive front lighting module, connector C2LF23A, pin 17, circuit VLF32B (YE), wiring harness side and the right-hand headlamp, connector C1LF09, pin 14, circuit VLF32C (YE), wiring harness side. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW headlamp. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No LOCATE and RECTIFY the break in the circuit(s) between the right-hand headlamp and intermediate connection C21A/B with the aid of the wiring diagrams. CHECK system operates correctly | | PINPOINT TEST H : CORNERING LIGHTS INOPERATIVE OR PERMANENTLY ON | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | H1: DETERMINE THE CONDITIONS UNDER WHICH THE FAULT OCCURS | NOTE:The cornering lights are only switched on when the vehicle is driving at a speed of less than 80 km/h and the low beam headlamps are switched on. | NOTE:The intensity of the cornering lights increases on a ramp up to the maximum value when they are switched on, and it decreases on a ramp until the cornering lights go out when they are switched off. | NOTE:Only the cornering light on the inside of the bend is switched on. | | | 1 SWITCH ON the low beam. | | | 2 Turn the steering approximately 30° to the left and right. | | | 3 CHECK the cornering lights on the left and right. | | | Are the cornering lights inoperative in both cases? Yes No - Left-hand cornering light inoperative: GO to H9. - Right-hand cornering light inoperative: GO to H12. - One cornering light permanently lit: GO to H15. - Both cornering lights permanently on even though the steering wheel is in the straight ahead position: RENEW the adaptive front lighting module. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
- Both cornering lights permanently on during cornering: RENEW the adaptive front lighting module. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
| | H2: CHECK FUSE F43 (5 A) (EJB) | | | 1 Ignition switch in position 0. | | | 2 Disconnect fuse F43 (5 A) (EJB). | | | 3 CHECK fuse F43 (5 A) (EJB). | | | Is the fuse OK.? Yes No RENEW fuse F43 (5 A) (EJB). CHECK system operates correctly If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly | | H3: CHECK THE VOLTAGE SUPPLY TO FUSE F43 (5 A) (EJB) FOR OPEN CIRCUIT | | | 1 Connect fuse F43 (5 A) (EJB). | | | 2 Ignition switch in position II. | | | 3 Measure the voltage between fuse F43 (5 A) (EJB) and ground. | | | Does the meter display battery voltage? Yes No LOCATE AND RECTIFY the break in the voltage supply of fuse F43 (5 A) (EJB) using the Wiring Diagrams. CHECK system operates correctly | | H4: CHECK FUSE F39 (15 A) (EJB) | | | 1 Ignition switch in position 0. | | | 2 Disconnect fuse F39 (15 A) (EJB). | | | 3 CHECK fuse F39 (15 A) (EJB). | | | Is the fuse OK.? Yes No RENEW fuse F39 (15 A) (EJB). CHECK system operates correctly If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly | | H5: CHECK THE VOLTAGE SUPPLY TO FUSE F39 (15 A) (EJB) FOR OPEN CIRCUIT | | | 1 Connect fuse F39 (15 A) (EJB). | | | 2 Ignition switch in position II. | | | 3 Measure the voltage between fuse F39 (15 A) (EJB) and ground. | | | Does the meter display battery voltage? Yes No LOCATE AND RECTIFY the break in the voltage supply of fuse F39 (15 A) (EJB) using the Wiring Diagrams. CHECK system operates correctly | | H6: CHECK VOLTAGE SUPPLY TO THE ADAPTIVE FRONT LIGHTING MODULE FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Adaptive front lighting module from connector C2LF23A. | | | 3 Ignition switch in position II. | | | 4 Measure the voltage between the adaptive front lighting module, connector C2LF23A, pin 10, circuit CBB43C (GY), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No LOCATE and RECTIFY the break in the circuit(s) between soldered connection SP171 and the adaptive front lighting module with the aid of the Wiring Diagrams. CHECK system operates correctly | | H7: CHECK VOLTAGE SUPPLY TO THE ADAPTIVE FRONT LIGHTING MODULE FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Adaptive front lighting module from connector C2LF23B. | | | 3 Ignition switch in position II. | | | 4 Measure the voltage between the adaptive front lighting module, connector C2LF23B, pin 1, circuit CBB39D (VT/WH), wiring harness side and ground. | | | 5 Measure the voltage between the adaptive front lighting module, connector C2LF23B, pin 2, circuit CBB39G (VT/WH), wiring harness side and ground. | | | Is battery voltage measured in both cases? Yes No - If battery voltage is not measured during one of the measurements: LOCATE and RECTIFY the break in the relevant circuit(s) between soldered connection SP174 and the adaptive front lighting module with the aid of the Wiring Diagrams. CHECK system operates correctly - If battery voltage is not measured during both of the measurements: LOCATE and RECTIFY the break in the circuit(s) between fuse F39 (15 A) (EJB) and soldered connection SP174 with the aid of the Wiring Diagrams. CHECK system operates correctly | | H8: CHECK THE GROUND CONNECTION OF THE ADAPTIVE FRONT LIGHTING MODULE FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the adaptive front lighting module, connector C2LF23A, pin 1, circuit GD138BU (BK/WH), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW the adaptive front lighting module. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No LOCATE and RECTIFY the break in the circuit(s) between the adaptive front lighting module and soldered connection SP518 with the aid of the wiring diagrams. CHECK system operates correctly | | H9: CHECK THE VOLTAGE SUPPLY TO THE CORNERING LIGHT, LEFT-HAND HEADLAMP, FOR OPEN CIRCUIT | NOTE:There is a delay before full battery voltage is applied to the cornering light on the inside of the bend. | | | 1 Ignition switch in position 0. | | | 2 Disconnect Left-hand headlamp from connector C1LF08. | | | 3 Ignition switch in position II. | | | 4 SWITCH ON the dipped beam. | | | 5 Turn the steering approximately 30° to the left. | | | 6 Measure the voltage between left-hand headlamp, connector C1LF08, pin 6, circuit CLF06B (BN/GN), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No | | H10: CHECK THE VOLTAGE SUPPLY TO THE CORNERING LIGHT, LEFT-HAND HEADLAMP | | | 1 Ignition switch in position 0. | | | 2 Disconnect Adaptive front lighting module from connector C2LF23A. | | | 3 Measure the resistance between the left-hand headlamp, connector C1LF08, pin 6, circuit CLF06B (BN/GN), wiring harness side and the adaptive lighting module, connector C2LF23B, pin 6, circuit CLF06A (BN/GN), wiring harness side. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW the adaptive front lighting module. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No LOCATE and RECTIFY break in the circuit(s) between the adaptive front lighting module and the headlamp with the aid of the Wiring Diagrams. CHECK system operates correctly | | H11: CHECK THE GROUND CONNECTION OF THE CORNERING LIGHT, LEFT-HAND HEADLAMP, FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the left-hand headlamp, connector C1LF08, pin 9, circuit GD130AS (BK/YE), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW headlamp. CHECK system operates correctly No -LOCATE and RECTIFY the break in circuit GD130AS (BK/YE) between the headlamp and soldered connection SP371 using the Wiring Diagrams. CHECK system operates correctly | | H12: CHECK THE VOLTAGE SUPPLY TO THE CORNERING LIGHT, RIGHT-HAND HEADLAMP, FOR OPEN CIRCUIT | NOTE:There is a delay before full battery voltage is applied to the cornering light on the inside of the bend. | | | 1 Ignition switch in position 0. | | | 2 Disconnect Right-hand headlamp from connector C1LF09. | | | 3 Ignition switch in position II. | | | 4 SWITCH ON the dipped beam. | | | 5 Turn the steering approximately 30° to the right. | | | 6 Measure the voltage between the right-hand headlamp, connector C1LF09 , pin 6, circuit CLF07B (GY/OG), wiring harness side and ground. | | | Does the meter display battery voltage? Yes No | | H13: CHECK THE VOLTAGE SUPPLY TO THE CORNERING LIGHT, RIGHT-HAND HEADLAMP, FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Adaptive front lighting module from connector C2LF23B. | | | 3 Measure the resistance between the right-hand headlamp, connector C1LF09, pin 6, circuit CLF07B (GY/OG), wiring harness side and the adaptive lighting module, connector C2LF23B, pin 5, circuit CLF07A (GY/OG), wiring harness side. | | | Is a resistance of less than 2 Ohms registered? Yes RENEW the adaptive front lighting module. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No LOCATE and RECTIFY break in the circuit(s) between the adaptive front lighting module and the headlamp with the aid of the Wiring Diagrams. CHECK system operates correctly | | H14: CHECK THE GROUND CONNECTION OF THE CORNERING LIGHT, RIGHT-HAND HEADLAMP, FOR OPEN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Measure the resistance between the left-hand headlamp, connector C1LF09, pin 9, circuit GD132X (BK/VT), wiring harness side and ground. | | | Is a resistance of less than 2 Ohms registered? Yes INSTALL A NEW headlamp. CHECK system operates correctly No LOCATE and RECTIFY the break in corresponding circuit GD132X (BK/VT) between soldered connection SP380 and the headlamp using the Wiring Diagrams. CHECK system operates correctly | | H15: RULE OUT THE ADAPTIVE LIGHTING MODULE AS THE CAUSE OF THE FAULT | | | 1 Ignition switch in position 0. | | | 2 Disconnect fuse F39 (15 A) (EJB). | | | 3 Disconnect fuse F43 (5 A) (EJB). | | | 4 Ignition switch in position II. | | | 5 CHECK the cornering lights. | | | Is the left-hand cornering light permanently on? Yes LOCATE and RECTIFY the short to battery voltage in the circuits between the adaptive lighting module and the left-hand headlamp with the aid of the Wiring Diagrams. CHECK system operates correctly No - Right-hand cornering light permanently lit: LOCATE and RECTIFY the short to battery voltage in the circuits between the adaptive lighting module and the right-hand headlamp with the aid of the Wiring Diagrams. CHECK system operates correctly - None of the cornering lights is permanently lit: RENEW the adaptive front lighting module. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
| Component checks High beam headlamp switch Pin occupation, component side: NOTE:The value measured in the continuity test of the high beam switch should be less than 50 Ohm. | Circuit to test | Connect a digital multimeter with the following connections | Set the switch to the following position | Switch is OK when the following test readings are seen | | Headlamp flasher | 1 and 3 | Off | Open circuit | | | | On | Closed circuit | | High beam | 1 and 6 | Off | Open circuit | | | | On | Closed circuit | | Left-hand turn signal | 1 and 5 | Neutral position | Open circuit | | | | On | Closed circuit | | Right-hand turn signal | 1 and 4 | Neutral position | Open circuit | | | | On | Closed circuit | |
