ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

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S-MAX.Galaxy 2006.5 (03.2006-)

Exterior Lighting - Turn Signal, Cornering and Hazard Lamps S-MAX/Galaxy 2006.5 (03/2006-)
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:
NOTE:The generic electronic module (GEM) is part of the central junction box (CJB).
NOTE:
NOTE:A new GEM needs to be configured after installation. For this purpose, the vehicle-specific data is read out of the module to be changed using WDS and is transferred to the new module. REFER to:
Modul-Konfiguration (418-01, General Procedures),
Zentralelektrikmodul (GEM) (419-10, Diagnosis and Testing).
NOTE:
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.
  1. Verify the customer concern.
  1. Visually inspect for obvious signs of electrical damage.

Visual Inspection Chart

Electrical
  • Fuse(s)
  • Bulb(s)
  • Connector
  • Switch
  • Wiring loom
  • CAN data bus
  • LIN data bus
  1. Resolve any obvious causes for a concern found during the visual inspection before carrying out any further tests.
  1. If the cause of the concern cannot be found by visual inspection, continue with the symptom chart.

Symptom chart

Symptom chart

Symptom Possible Sources Action
All turn signal lamps inoperative
*
Circuit(s)
*
Steering wheel/steering column module
*
Central junction box (CJB):
*
GO to Pinpoint Test A.
Hazard warning lights inoperative, turn signal function OK
*
Fuse(s)
*
Circuit(s)
*
Hazard warning lights switch
*
Central junction box (CJB):
*
GO to Pinpoint Test B.
Single or multiple turn signal lamps inoperative
*
Circuit(s)
*
Steering wheel/steering column module
*
GO to Pinpoint Test C.
One or more turn signal lamps flashing continuously
*
Hazard warning lights switch
*
Steering wheel/steering column module
*
Central junction box (CJB):
*
GO to Pinpoint Test D.
One or more turn signal lamps permanently lit
*
Circuit(s)
*
Central junction box (CJB):
*
GO to Pinpoint Test E.

Pinpoint test

NOTE:
NOTE:Use a digital multimeter for all electrical measurements.

PINPOINT TEST A : ALL TURN SIGNAL LAMPS INOPERATIVE
TEST CONDITIONS DETAILS/RESULTS/ACTIONS
A1: CHECK FUSE F7 (7.5 A) (SJB).
1
Ignition switch in position 0.
2
Disconnect Fuse F7 (7.5 A) (SJB).
3
CHECK Fuse F7 (7.5 A) (SJB).

Is the fuse OK.?
Yes
GO to A2.
No
RENEW fuse F7 (7.5 A) (SJB) and CHECK the operation of the system. If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly
A2: CHECK THE VOLTAGE SUPPLY TO FUSE F7 (7.5 A) (SJB) FOR OPEN CIRCUIT
1
Connect Fuse F7 (7.5 A) (SJB).
2
Ignition switch in position II.
3
Measure the voltage between fuse F7 (7.5 A) (SJB) and ground.

Does the meter display battery voltage?
Yes
GO to A3.
No
LOCATE and RECTIFY the break in the voltage supply of fuse F7 (7.5 A) (SJB) with the aid of the Wiring Diagrams. CHECK system operates correctly
A3: 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
GO to A4.
No
RENEW fuse F17 (60 A) (EJB) and CHECK the operation of the system. If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly
A4: CHECK THE VOLTAGE SUPPLY TO FUSE F17 (60 A) (EJB) FOR OPEN CIRCUIT
1
Connect fuse F17 (60 A) (EJB).
2
Ignition switch in position II.
3
Measure the voltage between fuse F17 (60 A) (EJB) and ground.

Does the meter display battery voltage?
Yes
GO to A5.
No
LOCATE AND RECTIFY the break in the voltage supply of fuse F17 (60 A) (EJB) with the aid of the wiring diagrams. CHECK system operates correctly
A5: 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
GO to A6.
No
RENEW fuse F18 (60 A) (EJB) and CHECK the operation of the system. If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly
A6: CHECK THE VOLTAGE SUPPLY TO FUSE F18 (60 A) (EJB) FOR OPEN CIRCUIT
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 the meter display battery voltage?
Yes
GO to A7.
No
LOCATE AND RECTIFY the break in the voltage supply of fuse F18 (60 A) (EJB) with the aid of the wiring diagrams. CHECK system operates correctly
A7: 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 voltage between the steering wheel/steering column module, connector C2LS41, pin 1, circuit SBP07A (WH/RD), wiring harness side and ground.
4
Ignition switch in position II.

Does the meter display battery voltage?
Yes
GO to A8.
No
LOCATE and RECTIFY the break in the circuits between fuse F7 (7.5 A) (SJB) and the steering wheel/steering column module with the aid of the Wiring Diagrams. CHECK system operates correctly
A8: 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
GO to A9.
No
LOCATE and RECTIFY the break in the circuits between the steering wheel/steering column module and soldered connection SP518 with the aid of the Wiring Diagrams. CHECK system operates correctly
A9: CHECK THE VOLTAGE SUPPLY TO THE SMART JUNCTION BOX (SJB) FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Smart Junction Box from connector C1BP02G.

3
Measure the voltage between the Smart Junction Box, connector C1BP02G, pin 1, circuit SBB17A (RD), wiring harness side and ground.

4
Measure the voltage between the Smart Junction Box, connector C1BP02G, pin 2, circuit SBB18A (YE), wiring harness side and ground.
5
Ignition switch in position II.

Is battery voltage measured in both cases?
Yes
GO to A10.
No
LOCATE and RECTIFY the break in the relevant circuits between fuse F17 (60 A) (EJB) or F18 (60 A) (EJB) and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly
A10: CHECK THE GROUND CONNECTION OF THE SMART JUNCTION BOX FOR OPEN CIRCUIT
1
Ignition switch in position 0.

2
Measure the resistance between the Smart Junction Box, connector C1BP02A, pin 54, circuit GD123F (BK/GY), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
GO to A11.
No
LOCATE and RECTIFY the break in the circuits between the Smart Junction Box and ground connection G1D132B with the aid of the Wiring Diagrams. CHECK system operates correctly
A11: CHECK THE GROUND CONNECTION OF THE SMART JUNCTION BOX FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Measure the resistance between the Smart Junction Box, connector C1BP02A, 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
GO to A12.
No
- LHD: LOCATE and RECTIFY the break in the circuits between the Smart Junction Box 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 Smart Junction Box and ground connection G3D133 with the aid of the Wiring Diagrams. CHECK system operates correctly
A12: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE STEERING WHEEL/STEERING COLUMN MODULE AND THE SMART JUNCTION BOX FOR SHORT CIRCUIT TO BATTERY VOLTAGE
1
Ignition switch in position II.

2
Measure the voltage between the steering wheel/steering column module, connector C2LS41, pin 2, circuit VMC34A (WH), wiring harness side and ground.

Does the meter display battery voltage?
Yes
GO to A13.
No
LOCATE and RECTIFY the short to battery voltage in the circuits between the steering wheel/steering column module and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly
A13: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE LIGHTS CONTROL MODULE AND THE SMART JUNCTION BOX FOR SHORT TO GROUND
1
Ignition switch in position 0.

2
Measure the resistance between the steering wheel/steering column module, connector C2LS41, pin 2, circuit VMC34A (WH), wiring harness side and ground.

Is a resistance of more than 10,000 Ohm measured?
Yes
GO to A14.
No
LOCATE and RECTIFY the short to ground in the circuits between the steering wheel/steering column module and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly
A14: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE STEERING WHEEL/STEERING COLUMN MODULE AND THE SMART JUNCTION BOX (SJB) FOR OPEN CIRCUIT

1
Measure the resistance between the steering wheel/steering column module, connector C2LS41, pin 2, circuit VMC34A (WH), wiring harness side and the Smart Junction Box, connector C1BP02C, pin 51, circuit VMC34A (WH), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW the steering wheel/steering column module CHECK system operates correctly If the concern persists:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
No
LOCATE and RECTIFY the break in the circuits between the steering wheel/steering column module and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly

PINPOINT TEST B : HAZARD WARNING LIGHTS INOPERATIVE, TURN SIGNAL FUNCTION OK
TEST CONDITIONS DETAILS/RESULTS/ACTIONS
B1: RULE OUT THE HIGH BEAM HEADLAMP SWITCH HAZARD WARNING LIGHT SYSTEM AS THE CAUSE OF THE FAULT
1
Ignition switch in position 0.
2
Disconnect Hazard warning lights switch from connector C2LS32.

3
Connect a fused jumper lead (5 A) to the hazard warning lights switch, connector C2LS32, between pin 6, circuit CLS32A (BN/YE) and pin 4, circuit GD133CF (BK), wiring harness side.
4
Ignition switch in position II.
5
CHECK the turn signal lamps.

Do the hazard indicators operate?
Yes
INSTALL A NEW hazard warning lights switch. CHECK system operates correctly
No
GO to B2.
B2: CHECK THE GROUND CONNECTION OF THE HAZARD WARNING LIGHTS SWITCH FOR OPEN CIRCUIT

1
Measure the resistance between the hazard warning lights switch, connector C2LS32, pin 4, circuit GD133CF (BK), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
GO to B3.
No
LOCATE and RECTIFY the break in the circuit between the hazard warning lights switch and ground connection G3D134 with the aid of the wiring diagrams. CHECK system operates correctly
B3: CHECK THE CIRCUIT BETWEEN THE HAZARD WARNING LIGHTS SWITCH AND THE SMART JUNCTION BOX FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Smart Junction Box from connector C1BP02C.

3
Measure the resistance between the hazard warning lights switch, connector C2LS32, pin 6, circuit CLS32A (BN/YE), wiring harness side and the Smart Junction Box, connector C1BP02C, pin 8, circuit CLS32A (BN/YE), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
INSTALL A NEW Smart Junction Box. CHECK system operates correctly
No
LOCATE and RECTIFY the break in the circuit between the hazard warning lights switch and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly

PINPOINT TEST C : SINGLE OR MULTIPLE TURN SIGNAL LAMPS INOPERATIVE
TEST CONDITIONS DETAILS/RESULTS/ACTIONS
C1: DETERMINE THE CONDITION UNDER WHICH THE FAULT OCCURS
1
Ignition switch in position II.
2
CHECK the turn signal lamps.
3
SWITCH ON the left-hand turn signal.
4
SWITCH ON the right-hand turn signal.

Is one or more turn signal lamp on the left-hand side inoperative?
Yes
- All turn signal lamps on left-hand side inoperative: CHECK and if necessary RENEW the steering wheel/steering column switch. CHECK system operates correctly If the concern persists:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
- Left-hand front turn signal lamp is inoperative: GO to C2.
- Left-hand rear turn signal lamp is inoperative: GO to C5.
- Integrated turn signal lamp in the left-hand exterior mirror is inoperative: GO to C8.
No
- All turn signal lamps on right-hand side inoperative: CHECK and if necessary RENEW the steering wheel/steering column switch. CHECK system operates correctly If the concern persists:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
- Right-hand front turn signal lamp is inoperative: GO to C16.
- Right-hand rear turn signal lamp is inoperative: GO to C19.
- Integrated turn signal lamp in the right-hand exterior mirror is inoperative: GO to C22.
- Integrated turn signal lamps in the exterior mirrors on both sides are inoperative: GO to C30.
C2: CHECK GROUND SUPPLY OF LEFT-HAND HEADLAMP FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Left-hand headlamp from connector C1LF08.
3
Measure the resistance between the left-hand headlamp, connector C1LF08, pin 7, circuit GD130T (BK/YE), wiring harness side and ground.
4
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 Ohm measured in both cases?
Yes
GO to C3.
No
LOCATE and RECTIFY the break in the relevant circuit between the headlamp and soldered connection SP371 using the wiring diagrams. CHECK system operates correctly
C3: CHECK THE VOLTAGE SUPPLY OF THE FRONT LEFT-HAND TURN SIGNAL LAMP FOR OPEN CIRCUIT
1
Ignition switch in position II.
2
CHECK the turn signal lamps.
3
SWITCH ON the left-hand turn signal.
4
Measure the voltage between the left-hand headlamp, connector C1LF08, pin 8, circuit CLS21A (BU/GN), wiring harness side and ground.

Is fluctuating battery voltage measured?
Yes
CHECK the left-hand headlamp and RENEW it as necessary. CHECK system operates correctly
No
GO to C4.
C4: CHECK VOLTAGE SUPPLY OF THE FRONT LEFT-HAND TURN SIGNAL LAMP FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Smart Junction Box from connector C1BP02A.
3
Measure the resistance between the Smart Junction Box, connector C1BP02A, pin 19, circuit CLS21A (BU/GN), wiring harness side and the left-hand headlamp, connector C1LF08, pin 8, circuit CLS21A (BU/GN), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
INSTALL A NEW Smart Junction Box. CHECK system operates correctly
No
LOCATE and RECTIFY the break in the circuit between the Smart Junction Box and the headlamp with the aid of the Wiring Diagrams. CHECK system operates correctly
C5: CHECK GROUND CONNECTION TO LEFT-HAND REAR LAMP ASSEMBLY FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Left-hand rear lamp assembly from connector C4LS18A.

3
Measure the resistance between the left-hand rear lamp assembly, connector C4LS18A, pin 3, circuit GD150C (BK/WH), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
GO to C6.
No
LOCATE and RECTIFY the break in the circuit between the rear lamp assembly and soldered connection SP549 with the aid of the Wiring Diagrams. CHECK system operates correctly
C6: CHECK VOLTAGE SUPPLY TO LEFT-HAND REAR LAMP ASSEMBLY FOR OPEN CIRCUIT
1
Ignition switch in position II.
2
SWITCH ON the left-hand turn signal.

3
Measure the voltage between the left-hand rear lamp assembly, connector C4LS18A, pin 4, circuit CLS23A (GY/OG), wiring harness side and ground.

Is fluctuating battery voltage measured?
Yes
CHECK and if necessary RENEW the left-hand rear lamp assembly. CHECK system operates correctly
No
GO to C7.
C7: CHECK VOLTAGE SUPPLY TO LEFT-HAND REAR LAMP ASSEMBLY FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Smart Junction Box from connector C1BP02B.

3
Measure the resistance between the Smart Junction Box, connector C1BP02B, pin 36, circuit CLS23A (GY/OG), wiring harness side and the rear left lamp assembly, connector C4LS18A, pin 4, circuit CLS23A (GY/OG), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
CHECK the Smart Junction Box with the aid of the WDS and RENEW it if required. CHECK system operates correctly
No
LOCATE and RECTIFY the break in the circuit between the Smart Junction Box and the rear lamp assembly with the aid of the Wiring Diagrams. CHECK system operates correctly
C8: CHECK FUSE FA1/FA2 (25 A) (RJB)
1
Ignition switch in position 0.
2
Disconnect Fuse.
  • LHD: FA1 (25 A) (RJB)
  • RHD: FA2 (25 A) (RJB)
3
CHECK Fuse.
  • LHD: FA1 (25 A) (RJB)
  • RHD: FA2 (25 A) (RJB)

Is the fuse OK.?
Yes
GO to C9.
No
- LHD: RENEW fuse FA1 (25 A) (RJB). CHECK system operates correctly If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly
- RHD: RENEW fuse FA2 (25 A) (RJB). CHECK system operates correctly If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly
C9: CHECK THE VOLTAGE SUPPLY TO FUSE FA1/FA2 (25 A) (RJB) FOR OPEN CIRCUIT
1
Connect Fuse.
  • LHD: FA1 (25 A) (RJB)
  • RHD: FA2 (25 A) (RJB)
2
Ignition switch in position II.
3
Measure the voltage between fuse:
  • LHD: FA1 (25 A) (RJB) and ground.
  • RHD: FA2 (25 A) (RJB) and ground.

Does the meter display battery voltage?
Yes
GO to C10.
No
- LHD: LOCATE and RECTIFY the break in the voltage supply of fuse FA1 (25 A) (RJB) with the aid of the Wiring Diagrams. CHECK system operates correctly
- RHD: LOCATE and RECTIFY the break in the voltage supply of fuse FA2 (25 A) (RJB) with the aid of the Wiring Diagrams. CHECK system operates correctly
C10: CHECK THE VOLTAGE SUPPLY OF THE LEFT-HAND DOOR CONTROL MODULE FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Door control module, left-hand side from connector C5PL01A.
3
Ignition switch in position II.

4
Measure the voltage between the door control module, left-hand side, connector C5PL01A, pin 2, circuit SBR01A (RD), wiring harness side and ground.

Does the meter display battery voltage?
Yes
GO to C11.
No
- LHD: LOCATE and RECTIFY the break in the circuit between the door control module and fuse FA1 (25 A) (RJB) with the aid of the Wiring Diagrams. CHECK system operates correctly
- RHD: LOCATE and RECTIFY the break in the circuit between the door control module and fuse FA2 (25 A) (RJB) with the aid of the Wiring Diagrams. CHECK system operates correctly
C11: CHECK THE GROUND CONNECTION OF THE LEFT-HAND DOOR CONTROL MODULE FOR OPEN CIRCUIT
1
Ignition switch in position 0.

2
Measure the resistance between the left-hand door control module, connector C5PL01A, pin 13, circuit GD134H (BK/VT), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
GO to C12.
No
LOCATE and RECTIFY the break in the circuit between the door control module and soldered connection SP386 with the aid of the Wiring Diagrams. CHECK system operates correctly
C12: CHECK THE VOLTAGE SUPPLY TO THE INTEGRATED TURN SIGNAL LAMP IN THE LEFT-HAND EXTERIOR MIRROR FOR OPEN CIRCUIT
1
Connect Left-hand door control module to connector C5PL01A.
2
Disconnect Left-hand integrated turn signal lamp from connector C5PM26A.
3
Ignition switch in position II.
4
SWITCH ON the left-hand turn signal.

5
Measure the voltage between the integrated turn signal lamp, left-hand exterior mirror, connector C5PM26A, pin 7, circuit CLS22A (GN/BN), wiring harness side and ground.

Is fluctuating battery voltage measured?
Yes
GO to C13.
No
GO to C15.
C13: CHECK THE GROUND SUPPLY TO THE INTEGRATED TURN SIGNAL LAMP IN THE LEFT-HAND EXTERIOR MIRROR FOR OPEN CIRCUIT
1
Ignition switch in position 0.

2
Measure the resistance between the integrated turn signal lamp, left-hand exterior mirror, connector C5PM26A, pin 6, circuit RPM05A (VT/GN), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW the integrated turn signal lamp in the exterior mirror CHECK system operates correctly
No
GO to C14.
C14: CHECK THE GROUND CONNECTION BETWEEN THE DOOR CONTROL MODULE AND THE INTEGRATED TURN SIGNAL LAMP IN THE LEFT-HAND EXTERIOR MIRROR FOR OPEN CIRCUIT
1
Disconnect Door control module, left-hand side from connector C5PL01B.

2
Measure the resistance between the integrated turn signal lamp, left-hand exterior mirror, connector C5PM26A, pin 6, circuit RPM05A (VT/GN), wiring harness side and the door control module, left-hand side, connector C5PL01B, pin 23, circuit RPM05A (VT/GN), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW the door control module. CHECK system operates correctly
No
LOCATE and RECTIFY the break in the circuit between the integrated turn signal lamp in the exterior mirror and the door control module using the Wiring Diagrams. CHECK system operates correctly
C15: CHECK THE VOLTAGE SUPPLY TO THE INTEGRATED TURN SIGNAL LAMP IN THE LEFT-HAND EXTERIOR MIRROR FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Left-hand door control module from connector C5PL01B.

3
Measure the resistance between the left-hand door control module, connector C5PL01B, pin 11, circuit CLS22A (GN/BN), wiring harness side and the integrated turn signal lamp, left-hand exterior mirror, connector C5PM26A, pin 7, circuit CLS22A (GN/BN), wiring harness side.

Is a resistance of less than 2 ohms registered?
Yes
CHECK and if necessary RENEW the door control module. CHECK system operates correctly If the concern persists:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
No
LOCATE and RECTIFY the break in the circuit between the door control module and the integrated turn signal lamp in the exterior mirror using the Wiring Diagrams. CHECK system operates correctly
C16: 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.
3
Measure the resistance between the right-hand headlamp, connector C1LF09, pin 9, circuit GD132X (BK/VT), wiring harness side and ground.

Is a resistance of less than 2 Ohm measured in both cases?
Yes
GO to C17.
No
LOCATE and RECTIFY the break in the circuit between the headlamp and soldered connection SP380 using the wiring diagrams. CHECK system operates correctly
C17: CHECK THE VOLTAGE SUPPLY TO THE FRONT RIGHT-HAND TURN SIGNAL LAMP FOR OPEN CIRCUIT
1
Ignition switch in position II.
2
SWITCH ON the right-hand turn signal.
3
Measure the voltage between the right-hand headlamp, connector C1LF09, pin 8, circuit CLS25A (YE/VT), wiring harness side and ground.

Is fluctuating battery voltage measured?
Yes
CHECK and if necessary RENEW the headlamp. CHECK system operates correctly
No
GO to C18.
C18: CHECK THE VOLTAGE SUPPLY TO THE FRONT RIGHT-HAND TURN SIGNAL LAMP FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Smart Junction Box from connector C1BP02A.
3
Measure the resistance between the Smart Junction Box, connector C1BP02A, pin 1, circuit CLS25A (YE/VT), wiring harness side and the right-hand headlamp, connector C1LF09, pin 8, circuit CLS25A (YE/VT), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
INSTALL A NEW Smart Junction Box. CHECK system operates correctly
No
LOCATE and RECTIFY the break in the circuit between the headlamp and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly
C19: CHECK THE GROUND CONNECTION TO THE RIGHT-HAND REAR LAMP ASSEMBLY FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Right-hand rear lamp assembly from connector C4LS19A.

3
Measure the resistance between the right-hand rear lamp assembly, connector C4LS19A, pin 3, circuit GD152A (BK/BU), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
GO to C20.
No
LOCATE and RECTIFY the break in the circuit between the rear lamp assembly and soldered connection SP600 with the aid of the Wiring Diagrams. CHECK system operates correctly
C20: CHECK VOLTAGE SUPPLY TO RIGHT-HAND REAR LAMP ASSEMBLY FOR OPEN CIRCUIT
1
Ignition switch in position II.
2
SWITCH ON the right-hand turn signal.

3
Measure the voltage between the right-hand rear lamp assembly, connector C4LS19A, pin 4, circuit CLS27A (GN/OG), wiring harness side and ground.

Is fluctuating battery voltage measured?
Yes
CHECK and if necessary RENEW the right-hand rear lamp assembly. CHECK system operates correctly
No
GO to C21.
C21: CHECK VOLTAGE SUPPLY TO RIGHT-HAND REAR LAMP ASSEMBLY FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Smart Junction Box from connector C1BP02B.

3
Measure the resistance between the Smart Junction Box, connector C1BP02B, pin 18, circuit CLS27A (GN/OG), wiring harness side and the rear right lamp assembly, connector C4LS19A, pin 4, circuit CLS27A (GN/OG), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
INSTALL A NEW Smart Junction Box. CHECK system operates correctly
No
LOCATE and RECTIFY the break in the circuit between the rear lamp assembly and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly
C22: CHECK FUSE FA2/FA1 (25 A) (RJB)
1
Ignition switch in position 0.
2
Disconnect Fuse.
  • LHD: FA2 (25 A) (RJB)
  • RHD: FA1 (25 A) (RJB)
3
CHECK Fuse.
  • LHD: FA2 (25 A) (RJB)
  • RHD: FA1 (25 A) (RJB)

Is the fuse OK.?
Yes
GO to C23.
No
- LHD: RENEW fuse FA2 (25 A) (RJB) and CHECK the operation of the system. If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly
- RHD: RENEW fuse FA1 (25 A) (RJB) and CHECK the operation of the system. If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly
C23: CHECK THE VOLTAGE SUPPLY TO FUSE FA2/FA1 (25 A) (RJB) FOR OPEN CIRCUIT
1
Connect Fuse.
  • LHD: FA2 (25 A) (RJB)
  • RHD: FA1 (25 A) (RJB)
2
Ignition switch in position II.
3
Measure the voltage between fuse:
  • LHD: FA2 (25 A) (RJB) and ground.
  • RHD: FA1 (25 A) (RJB) and ground.

Does the meter display battery voltage?
Yes
GO to C24.
No
- LHD: LOCATE and RECTIFY the break in the voltage supply of fuse FA2 (25 A) (RJB) with the aid of the Wiring Diagrams. CHECK system operates correctly
- RHD: LOCATE and RECTIFY the break in the voltage supply of fuse FA1 (25 A) (RJB) with the aid of the Wiring Diagrams. CHECK system operates correctly
C24: CHECK THE VOLTAGE SUPPLY TO THE RIGHT-HAND DOOR CONTROL MODULE FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Right-hand door control module from connector C6PL01A.
3
Ignition switch in position II.

4
Measure the voltage between the door control module, right-hand side, connector C6PL01A, pin 2, circuit SBR02A (YE/RD), wiring harness side and ground.

Does the meter display battery voltage?
Yes
GO to C25.
No
- LHD: LOCATE and RECTIFY the break in the circuit between the door control module and fuse FA2 (25 A) (RJB) with the aid of the Wiring Diagrams. CHECK system operates correctly
- RHD: LOCATE and RECTIFY the break in the circuit between the door control module and fuse FA1 (25 A) (RJB) with the aid of the Wiring Diagrams. CHECK system operates correctly
C25: CHECK THE GROUND SUPPLY OF THE RIGHT-HAND DOOR CONTROL MODULE FOR OPEN CIRCUIT
1
Ignition switch in position 0.

2
Measure the voltage between the door control module, right-hand side, connector C6PL01A, pin 13, circuit GD140D (BK/GN), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
GO to C26.
No
LOCATE and RECTIFY the break in the circuit between the door control module and soldered connection SP392 with the aid of the Wiring Diagrams. CHECK system operates correctly
C26: CHECK THE VOLTAGE SUPPLY TO THE INTEGRATED TURN SIGNAL LAMP IN THE RIGHT-HAND EXTERIOR MIRROR FOR OPEN CIRCUIT
1
Connect Right-hand door control module to connector C6PL01A.
2
Disconnect Right-hand integrated turn signal lamp from connector C5PM31A.
3
Ignition switch in position II.
4
SWITCH ON the right-hand turn signal.

5
Measure the voltage between the integrated turn signal lamp, right-hand exterior mirror, connector C5PM31A, pin 7, circuit CLS26A (BU/GY), wiring harness side and ground.

Is fluctuating battery voltage measured?
Yes
GO to C27.
No
GO to C29.
C27: CHECK THE GROUND SUPPLY TO THE INTEGRATED TURN SIGNAL LAMP IN THE RIGHT-HAND EXTERIOR MIRROR FOR OPEN CIRCUIT
1
Ignition switch in position 0.

2
Measure the resistance between the integrated turn signal lamp, right-hand exterior mirror, connector C5PM31A, pin 6, circuit RPM08A (GN/BU), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW the integrated turn signal lamp in the exterior mirror CHECK system operates correctly
No
GO to C28.
C28: CHECK THE GROUND CONNECTION BETWEEN THE RIGHT-HAND DOOR CONTROL MODULE AND THE INTEGRATED TURN SIGNAL LAMP IN THE RIGHT-HAND EXTERIOR MIRROR FOR OPEN CIRCUIT
1
Disconnect Door control module from connector C6PL01B.

2
Measure the resistance between the integrated turn signal lamp, right-hand exterior mirror, connector C5PM31A, pin 6, circuit RPM08A (GN/BU), wiring harness side and the door control module, right-hand side, connector C6PL01B, pin 23, circuit RPM08A (GN/BU), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW the door control module. CHECK system operates correctly
No
LOCATE and RECTIFY the break in the circuit between the integrated turn signal lamp in the exterior mirror and the door control module using the Wiring Diagrams. CHECK system operates correctly
C29: CHECK THE VOLTAGE SUPPLY TO THE INTEGRATED TURN SIGNAL LAMP IN THE RIGHT-HAND EXTERIOR MIRROR FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Right-hand door control module from connector C6PL01B.

3
Measure the resistance between the right-hand door control module, connector C6PL01B, pin 11, circuit CLS26A (BU/GY), wiring harness side and the integrated turn signal lamp, right-hand exterior mirror, connector C5PM31A, pin 7, circuit CLS26A (BU/GY), wiring harness side.

Is a resistance of less than 2 ohms registered?
Yes
CHECK and if necessary RENEW the door control module. CHECK system operates correctly If the concern persists:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
No
LOCATE and RECTIFY the break in the circuit between the door control module and the integrated turn signal lamp in the exterior mirror using the Wiring Diagrams. CHECK system operates correctly
C30: CHECK FUSE F19 (60 A) (EJB)
1
Ignition switch in position 0.
2
Disconnect fuse F19 (60 A) (EJB).
3
CHECK fuse F19 (60 A) (EJB).

Is the fuse OK.?
Yes
GO to C31.
No
RENEW fuse F19 (60 A) (EJB) and CHECK the operation of the system. If the fuse blows again, LOCATE and RECTIFY the short to ground using the Wiring Diagrams. CHECK system operates correctly
C31: CHECK THE VOLTAGE SUPPLY TO FUSE F19 (60 A) (EJB) FOR OPEN CIRCUIT
1
Connect fuse F19 (60 A) (EJB).
2
Ignition switch in position II.
3
Measure the voltage between fuse F19 (60 A) (EJB) and ground.

Does the meter display battery voltage?
Yes
GO to C32.
No
LOCATE AND RECTIFY the break in the voltage supply of fuse F19 (60 A) (EJB) with the aid of the wiring diagrams. CHECK system operates correctly
C32: CHECK THE JOINT VOLTAGE SUPPLY OF THE INTEGRATED TURN SIGNAL LAMPS IN THE EXTERIOR MIRRORS FOR OPEN CIRCUIT
1
Measure the voltage between fuse FA1/FA2 (25 A) (RJB) and ground.

Does the meter display battery voltage?
Yes
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
No
LOCATE and RECTIFY the break in the circuits between fuse F19 (60 A) (EJB) and FA1/FA2 (25 A) (RJB) using the Wiring Diagrams. CHECK system operates correctly

PINPOINT TEST D : ONE OR MORE TURN SIGNAL LAMPS FLASHING CONTINUOUSLY
TEST CONDITIONS DETAILS/RESULTS/ACTIONS
D1: DETERMINE THE CONDITION UNDER WHICH THE FAULT OCCURS
1
Ignition switch in position II.
2
CHECK all turn signal lamps.

Do the turn signal lamps on one side flash continuously?
Yes
GO to D2.
No
- Turn signal lamps on both sides are flashing continuously: GO to D3.
- Individual turn signal lamp flashing continuously: CHECK the Smart Junction Box (SJB) and RENEW it if required. CHECK system operates correctly If the concern persists:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
- One of the integrated turn signal lamps in the exterior mirrors is flashing continuously: CHECK and if necessary RENEW the door control module. CHECK system operates correctly If the concern persists:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
- Both of the integrated turn signal lamps in the exterior mirrors are flashing continuously:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
D2: RULE OUT THE STEERING WHEEL/STEERING COLUMN MODULE AS THE CAUSE OF THE FAULT
1
Ignition switch in position 0.
2
Disconnect Steering wheel/steering column module from connector C2LS41.
3
Ignition switch in position II.
4
CHECK the turn signal lamps.

Are the turn signal lamps flashing continuously?
Yes
CHECK the Smart Junction Box and RENEW it if required. CHECK system operates correctly If the concern persists:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
No
RENEW the steering wheel/steering column module CHECK system operates correctly
D3: RULE OUT THE HIGH BEAM HEADLAMP SWITCH HAZARD WARNING LIGHT SYSTEM AS THE CAUSE OF THE FAULT
1
Ignition switch in position 0.
2
Disconnect Hazard warning lights switch from connector C2LS32.
3
Ignition switch in position II.
4
CHECK the turn signal lamps.

Are the turn signal lamps flashing continuously?
Yes
GO to D4.
No
RENEW the hazard warning lights switch. CHECK system operates correctly
D4: CHECK THE CONTROL CIRCUIT BETWEEN THE HAZARD WARNING LIGHTS SWITCH AND THE SMART JUNCTION BOX FOR SHORT TO GROUND
1
Ignition switch in position 0.
2
Disconnect Smart Junction Box from connector C1BP02C.

3
Measure the resistance between the hazard warning lights switch, connector C2LS32, pin 6, circuit CLS32A (BN/YE), wiring harness side and ground.

Is a resistance of more than 10,000 Ohm measured?
Yes
CHECK the Smart Junction Box and RENEW it if required. CHECK system operates correctly
No
LOCATE and RECTIFY the short to ground in the circuits between the hazard warning lights switch and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly

PINPOINT TEST E : ONE OR MORE TURN SIGNAL LAMPS PERMANENTLY LIT
TEST CONDITIONS DETAILS/RESULTS/ACTIONS
E1: DETERMINE THE CONDITION UNDER WHICH THE FAULT OCCURS
1
Ignition switch in position II.
2
CHECK the turn signal lamps.

Are the turn signal lamps lit up permanently?
Yes
CHECK the Smart Junction Box and RENEW it if required. CHECK system operates correctly If the concern persists:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
No
- Front left turn signal lamp permanently lit: GO to E2.
- Rear left turn signal lamp permanently lit: GO to E3.
- Front right turn signal lamp permanently lit: GO to E4.
- Rear right-hand turn indicator permanently lit: GO to E5.
- Integrated turn signal lamp in the left-hand exterior mirror permanently lit: GO to E6.
- Integrated turn signal lamp in the right-hand exterior mirror permanently lit: GO to E7.
E2: CHECK THE CIRCUIT BETWEEN THE SMART JUNCTION BOX AND THE LEFT-HAND HEADLAMP FOR SHORT TO BATTERY VOLTAGE
1
Ignition switch in position 0.
2
Disconnect Smart Junction Box from connector C1BP02A.
3
Ignition switch in position II.
4
CHECK the turn signal lamps.

Is the front left-hand turn signal permanently lit?
Yes
LOCATE and RECTIFY the short to battery voltage in the circuit between the headlamp and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly
No
CHECK the Smart Junction Box and RENEW it if required. CHECK system operates correctly
E3: CHECK THE CIRCUIT BETWEEN THE SMART JUNCTION BOX AND THE LEFT-HAND REAR LAMP ASSEMBLY FOR SHORT TO BATTERY VOLTAGE
1
Ignition switch in position 0.
2
Disconnect Left-hand rear lamp assembly from connector C4LS18A.
3
CHECK the turn signal lamps.
4
Ignition switch in position II.
5
CHECK the turn signal lamps.

Is the rear left-hand turn signal lamp permanently lit?
Yes
LOCATE and RECTIFY the short to battery voltage in the circuit between the rear lamp assembly and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly
No
CHECK the Smart Junction Box and RENEW it if required. CHECK system operates correctly
E4: CHECK THE CIRCUIT BETWEEN THE SMART JUNCTION BOX AND THE RIGHT-HAND HEADLAMP FOR SHORT TO BATTERY VOLTAGE
1
Ignition switch in position 0.
2
Disconnect Smart Junction Box from connector C1BP02A.
3
Ignition switch in position II.
4
CHECK the turn signal lamps.

Is the front right-hand turn signal permanently lit?
Yes
LOCATE and RECTIFY the short to battery voltage in the circuit between the headlamp and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly
No
CHECK the Smart Junction Box and RENEW it if required. CHECK system operates correctly
E5: CHECK THE CIRCUIT BETWEEN THE SMART JUNCTION BOX AND THE RIGHT-HAND REAR LAMP ASSEMBLY FOR SHORT TO BATTERY VOLTAGE
1
Ignition switch in position 0.
2
Disconnect Smart Junction Box from connector C1BP02B.
3
Ignition switch in position II.
4
CHECK the turn signal lamps.

Is the right-hand rear turn signal lamp on continuously?
Yes
LOCATE and RECTIFY the short to battery voltage in the circuit between the rear lamp assembly and the Smart Junction Box with the aid of the Wiring Diagrams. CHECK system operates correctly
No
CHECK the Smart Junction Box and RENEW it if required. CHECK system operates correctly
E6: RULE OUT THE LEFT-HAND DOOR CONTROL MODULE AS THE CAUSE OF THE FAULT
1
Ignition switch in position 0.
2
Disconnect Left-hand door control module from connector C5PL01B.
3
Ignition switch in position II.
4
CHECK the turn signal lamp.

Is the integrated turn signal lamp in the left-hand exterior mirror permanently lit?
Yes
LOCATE and RECTIFY the short to battery voltage in the circuit between the door control module and the integrated turn signal lamp in the exterior mirror using the Wiring Diagrams. CHECK system operates correctly
No
CHECK and if necessary RENEW the door control module. CHECK system operates correctly If the concern persists:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
E7: RULE OUT THE RIGHT-HAND DOOR CONTROL MODULE AS THE CAUSE OF THE FAULT
1
Ignition switch in position 0.
2
Disconnect Right-hand door control module from connector C6PL01B.
3
Ignition switch in position II.
4
CHECK the turn signal lamp.

Is the integrated turn signal lamp in the right-hand exterior mirror permanently lit?
Yes
LOCATE and RECTIFY the short to battery voltage in the circuit between the door control module and the integrated turn signal lamp in the exterior mirror using the Wiring Diagrams. CHECK system operates correctly
No
CHECK and if necessary RENEW the door control module. CHECK system operates correctly If the concern persists:
REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).

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