ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Trailer Lamps > < Headlamp Leveling
Exterior Lighting - Parking, Rear and License Plate Lamps Mondeo 2007.5 (02/2007-)
Diagnosis and Testing

Refer to Wiring Diagrams Section 417-01, for schematic and connector information.

Special Tool(s)

Terminal Probe Kit

29-011A

General Equipment
Digital Multimeter.
Diagnostic tool.

Inspection and Verification

NOTE:
NOTE:The generic electronic module (GEM) is part of the central junction box (CJB).
NOTE:
NOTE:If a new GEM module is being installed, the new module must be configured following installation. For this purpose, the vehicle-specific data is read out of the module to be changed using the diagnostic equipment and is transferred to the new module. REFER to:
Module Configuration (418-01 Module Configuration, General Procedures),
Generic Electronic Module (GEM) (419-10 Multifunction Electronic Modules, 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 the diagnostic unit can communicate correctly.
NOTE:
NOTE:Ensure correct engagement of the wiring harness connectors.
  1. Verify the customer concern.
  1. Visually inspect for obvious signs of mechanical or electrical damage.

Visual Inspection Chart

Electrical
  • Fuse(s)
  • Bulb(s).
  • Electrical connectors.
  • Switch.
  • Vehicle wiring harness.
  1. 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
  1. 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
  1. On a vehicle without stored fault(s), continue according to the Symptom Chart and the corresponding symptom.
  1. 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 (417-01A 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 (417-01A 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 (417-01A 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 (417-01A 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 (417-01A Exterior Lighting, Diagnosis and Testing).
9D0713 Circuit of right-hand turn signal lamps faulty. REFER to: Turn Signal, Cornering and Hazard Lamps (417-01A 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 (417-01A 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 (417-01A Exterior Lighting, Diagnosis and Testing).
913C11 Circuit of hazard warning switch illumination faulty (short to ground). REFER to: Turn Signal, Cornering and Hazard Lamps (417-01A 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 (417-01A Exterior Lighting, Diagnosis and Testing).
9D3524 Circuit of hazard warning switch faulty. REFER to: Turn Signal, Cornering and Hazard Lamps (417-01A Exterior Lighting, Diagnosis and Testing).
913007 Light switch unit, component fault. REFER to: Headlamps (417-01A Exterior Lighting, Diagnosis and Testing).
9D0011 Circuit of left-hand headlamp faulty (short to ground). REFER to: Headlamps (417-01A Exterior Lighting, Diagnosis and Testing).
9D0111 Circuit of right-hand headlamp faulty (short to ground). REFER to: Headlamps (417-01A Exterior Lighting, Diagnosis and Testing).
9D0013 Circuit of left-hand headlamp faulty (open circuit). REFER to: Headlamps (417-01A Exterior Lighting, Diagnosis and Testing).
9D0113 Circuit of right-hand headlamp faulty (open circuit). REFER to: Headlamps (417-01A Exterior Lighting, Diagnosis and Testing).
909811 Circuit of left-hand marker lamp (parking lamp) faulty (short to ground). REFER TO: Symptom chart.
909813 Circuit of left-hand marker lamp (parking lamp) faulty (open circuit). REFER TO: Symptom chart.
909911 Circuit of right-hand marker lamp (parking lamp) faulty (short to ground). REFER TO: Symptom chart.
909913 Circuit of right-hand marker lamp (parking lamp) faulty (open circuit). REFER TO: Symptom chart.
909B13 Circuit of license plate lamps faulty. REFER TO: Symptom chart.
909B11 Circuit of license plate lamps faulty (short to ground). REFER TO: Symptom chart.
9A7913 Circuit of rear fog lamps faulty. REFER to: Fog Lamps (417-01A Exterior Lighting, Diagnosis and Testing).
9A7911 Circuit of rear fog lamps faulty (short to ground). REFER to: Fog Lamps (417-01A Exterior Lighting, Diagnosis and Testing).
402311. 402313 Stop lamp circuit faulty. REFER to: Stoplamps (417-01A Exterior Lighting, Diagnosis and Testing).
911511 Circuit of high-mounted stop lamp faulty (short to ground). REFER to: Stoplamps (417-01A Exterior Lighting, Diagnosis and Testing).
911513 Circuit of high-mounted stop lamp faulty (open circuit). REFER to: Stoplamps (417-01A Exterior Lighting, Diagnosis and Testing).
90AD09 Rain sensor/light sensor, component fault. REFER to:
Autolamps (417-01A 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 (417-01A Exterior Lighting, Diagnosis and Testing),
Wipers and Washers (501-16 Wipers and Washers, Diagnosis and Testing).

Symptom Chart

Symptom Chart

Symptom Possible Sources Action
All parking lamps inoperative.
*
Fuse(s)
*
Circuit(s).
*
Ignition switch.
*
Lighting control module.
*
GEM
*
GO to Pinpoint Test A.
One parking, rear or license lamp is inoperative.
*
Fuse(s)
*
Circuit(s).
*
Lighting control module.
*
License plate lights
*
Rear lamp unit.
*
Conventional Headlamps.
*
Gas discharge headlamps.
*
GEM
*
GO to Pinpoint Test B.
The Parking, Rear or License Lamps Are On Continuously.
*
Circuit(s).
*
Lighting control module.
*
Trailer socket.
*
GEM
*
GO to Pinpoint Test C.

Pinpoint test

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

PINPOINT TEST A : ALL PARKING LAMPS INOPERATIVE

TEST CONDITIONS DETAILS/RESULTS/ACTIONS
A1: 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 (DRL)?
Yes
No
A2: DETERMINE THE CONDITIONS UNDER WHICH THE FAULT OCCURS.
1
Ignition switch in position II.
2
Light switch in OFF position.
3
CHECK the headlamp.

Do the parking lamps come on?
Yes
No
CHECK the software configuration of the GEM with the aid of the diagnostic unit and update it if required. CHECK system operates correctly If the concern persists: GO to A3.
A3: 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) and CHECK the operation of the system. If the fuse blows again, LOCATE and RECTIFY the short using the Wiring Diagrams. CHECK system operates correctly
A4: 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 (5A) (EJB) with the aid of the wiring diagrams. CHECK system operates correctly
A5: 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) and CHECK the operation of the system. If the fuse blows again, LOCATE and RECTIFY the short using the Wiring Diagrams. CHECK system operates correctly
A6: 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
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
A7: CHECK THE VOLTAGE SUPPLY TO THE LIGHTS CONTROL MODULE FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Lighting control module from connector C2LF23-D.

3
Measure the voltage between the lights control module, connector C2LF23-D, pin 1, circuit SBB33B (RD), wiring harness side and ground.
4
Ignition switch in position II.

Does the meter display battery voltage?
Yes
No
LOCATE and RECTIFY the break in the circuit between fuse F33 (5 A) (EJB) and the lights control module with the aid of the wiring diagrams. CHECK system operates correctly
A8: 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 C2LF23-D, 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 circuit between the lights control module and ground connection G3D134 with the aid of the Wiring Diagrams. CHECK system operates correctly
A9: CHECK THE POWER SUPPLY TO THE GEM FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-G.

3
Measure the voltage between the GEM, connector C1BP02-G, pin 1, circuit SBB17A (RD), wiring harness side and ground.
4
Ignition switch in position II.

Does the meter display battery voltage?
Yes
No
LOCATE and RECTIFY the break in the circuit SBB17A (RD) between fuse F17 (60 A) (EJB) and the GEM with the aid of the wiring diagrams. CHECK system operates correctly
A10: CHECK THE GROUND CONNECTION OF THE GEM FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-A.

3
Measure the resistance between the GEM, connector C1BP02-A, 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 circuit between the GEM and ground connection G1D132B with the aid of the Wiring Diagrams. CHECK system operates correctly
A11: CHECK THE GROUND CONNECTION OF THE GEM FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-B.

3
Measure the resistance between the GEM, connector C1BP02-B, 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
No
- LHD: LOCATE and RECTIFY the break in the circuit between the GEM and ground connection G3D138 with the aid of the Wiring Diagrams. CHECK system operates correctly
- RHD: LOCATE and RECTIFY the break in the circuit between the GEM and ground connection G3D133 with the aid of the Wiring Diagrams. CHECK system operates correctly
A12: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE LIGHTS CONTROL MODULE AND THE GEM FOR SHORT TO BATTERY VOLTAGE
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-C.
3
Ignition switch in position II.

4
Measure the voltage between the lights control module, connector C2LF23-D, 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 the circuits between the lights control module and the GEM 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 GEM FOR SHORT TO GROUND
1
Ignition switch in position 0.

2
Measure the resistance between the lights control module, connector C2LF23-D, 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 the circuit between the lights control module and the GEM with the aid of the Wiring Diagrams. CHECK system operates correctly
A14: CHECK THE LIN DATA BUS CONNECTION BETWEEN THE LIGHTS CONTROL MODULE AND THE GEM FOR OPEN CIRCUIT

1
Measure the resistance between the lights control module, connector C2LF23-D, pin 6, circuit VLF25A (GN/VT), wiring harness side and the GEM, connector C1BP02-C, 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 the circuit between the lights control module and the GEM with the aid of the Wiring Diagrams. CHECK system operates correctly
A15: RULE OUT THE LIGHTS CONTROL MODULE AS A POSSIBLE CAUSE OF THE FAULT
1
Perform a component test with the aid of a digital multimeter.

Is the lights control module OK?
Yes
CHECK the GEM with the aid of the diagnostic unit and RENEW IT if required. CHECK system operates correctly
No
INSTALL A NEW lights control module. CHECK system operates correctly

PINPOINT TEST B : ONE PARKING, REAR OR LICENSE LAMP(S) IS INOPERATIVE

TEST CONDITIONS DETAILS/RESULTS/ACTIONS
B1: DETERMINE THE FAULT CONDITION
1
SWITCH ON the parking lamps.
2
CHECK parking lamps and license plate lamps.

Are both parking lamps inoperative?
Yes
CHECK and if necessary RENEW the GEM. CHECK system operates correctly
No
- Both license plate lamps inoperative: GO to B2.
- One license plate lamp inoperative: GO to B4.
- Front left parking lamp inoperative: GO to B6.
- Front right parking lamp inoperative: GO to B9.
- Both rear lamps on the left-hand side inoperative: GO to B12.
- Left-hand rear lamp inoperative: GO to B14.
- Rear lamp (tailgate) on the left-hand side inoperative: GO to B15.
- Both rear lamps on the right-hand side inoperative: GO to B17.
- Right-hand rear lamp inoperative: GO to B18.
- Rear lamp (tailgate) on the right-hand side inoperative: GO to B20.
B2: CHECK THE COMMON POWER SUPPLY OF THE LICENSE PLATE LAMPS FOR OPEN
1
Ignition switch in position 0.
2
Disconnect left-hand license plate lamp from connector C4LS04-A.
3
Ignition switch in position II.
4
SWITCH ON the parking lamps.
5
Measure the voltage between the left-hand license plate lamp, connector C4LS04-A, pin 1, circuit CLS04E (YE/VT), wiring harness side and ground.

Does the meter display battery voltage?
Yes
LOCATE and RECTIFY the break in the circuit between soldered connection SP534 and ground connection G4D149 with the aid of the Wiring Diagrams. CHECK system operates correctly
No
B3: CHECK THE COMMON POWER SUPPLY OF THE LICENSE PLATE LAMPS FOR OPEN
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-B.
3
Measure the resistance between the GEM, connector C1BP02-B, pin 52, circuit CLS04B (YE/VT), wiring harness side and the left-hand license plate lamp, connector C4LS04-A, pin 1, circuit CLS04E (YE/VT), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW the GEM. CHECK system operates correctly
No
LOCATE and RECTIFY the break in the circuit between the GEM and soldered connection SP400 using the wiring diagrams. CHECK system operates correctly
B4: CHECK THE POWER SUPPLY TO THE LICENSE PLATE LAMP FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect License plate light.
  • left: from connector C4LS04-A
  • right: from connector C4LS05-A
3
Ignition switch in position II.
4
SWITCH ON the parking lamps.
5
Measure the voltage between license plate lamp:
  • left: Connector C4LS04-A, pin 1, circuit CLS04E (YE/VT), wiring harness side and ground.
  • right: Connector C4LS05-A, pin 1, circuit CLS04F (YE/VT), wiring harness side and ground.

Does the meter display battery voltage?
Yes
No
LOCATE and RECTIFY the break in the corresponding circuit between soldered connection SP400 and the license plate lamp with the aid of the Wiring Diagrams. CHECK system operates correctly
B5: CHECK THE GROUND CONNECTION OF THE LICENSE PLATE LAMP FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Measure the resistance between the license plate lamp:
  • left: connector C4LS04-A, pin 2, circuit GD150MA (BK/WH), wiring harness side and ground.
  • right: connector C4LS05-A, pin 2, circuit GD150UA (BK/WH), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW the license plate lamp. CHECK system operates correctly
No
LOCATE and RECTIFY the break in the corresponding circuit between the license plate lamp and soldered connection SP534 with the aid of the Wiring Diagrams. CHECK system operates correctly
B6: 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 Ohms measured in both cases?
Yes
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
B7: CHECK THE VOLTAGE SUPPLY TO THE FRONT LEFT-HAND PARKING LIGHT FOR OPEN CIRCUIT
1
Ignition switch in position II.
2
SWITCH ON left-hand parking lamps.

3
Measure the voltage between left-hand headlamp, connector C1LF08, pin 12, circuit CLS13D (YE/BU), wiring harness side and ground.

Does the meter display fluctuating battery voltage?
Yes
CHECK the left-hand headlamp and RENEW it as necessary. CHECK system operates correctly
No
B8: CHECK THE VOLTAGE SUPPLY TO THE FRONT LEFT-HAND PARKING LIGHT FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-A.

3
Measure the resistance between the GEM, connector C1BP02-A, pin 39, circuit CLS13D (YE/BU), wiring harness side and the left-hand headlamp, connector C1LF08, pin 12, circuit CLS13D (YE/BU), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW the GEM. CHECK system operates correctly
No
LOCATE and RECTIFY the break in the circuit CLS13D (YE/BU) between GEM and the left headlamp using the Wiring Diagrams. CHECK system operates correctly
B9: 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 Ohms measured in both cases?
Yes
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
B10: CHECK THE VOLTAGE SUPPLY TO THE RIGHT-HAND FRONT PARKING LAMP FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
SWITCH ON right-hand parking lamps.

3
Measure the voltage between the right-hand headlamp, connector C1LF09, pin 12, circuit CLS07C (BN/YE), wiring harness side and ground.

Does the meter display fluctuating battery voltage?
Yes
CHECK and if necessary RENEW the headlamp. CHECK system operates correctly
No
B11: CHECK THE VOLTAGE SUPPLY TO THE RIGHT-HAND FRONT PARKING LAMP FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-A.

3
Measure the resistance between the GEM, connector C1BP02-A, pin 40, circuit CLS07C (BN/YE), wiring harness side and the right-hand headlamp, connector C1LF09, pin 12, circuit CLS07C (BN/YE), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW the GEM. CHECK system operates correctly
No
LOCATE and RECTIFY the break in circuit CLS07C (BN/YE) between headlamp and GEM using the Wiring Diagrams. CHECK system operates correctly
B12: CHECK THE SHARED VOLTAGE SUPPLY OF THE LEFT-HAND REAR PARKING LAMPS FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect left-hand rear lamp from connector C4LS18-A.
3
Ignition switch in position II.
4
SWITCH ON the parking lamps.

5
Measure the voltage between the left-hand rear lamp, connector C4LS18-A, pin 2, circuit CLS08A (VT/GN)/CLS08C (VT/GN), wiring harness side and ground.

Does the meter display battery voltage?
Yes
LOCATE and RECTIFY the break in the circuits between soldered connection SP549 and ground connection G4D149 with the aid of the Wiring Diagrams. CHECK system operates correctly
No
B13: CHECK THE SHARED VOLTAGE SUPPLY OF THE LEFT-HAND REAR PARKING LAMPS FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-B.

3
Measure the resistance between the left-hand rear lamp, connector C4LS18-A, pin 2, circuit CLS08A (VT/GN)/CLS08C (VT/GN), wiring harness side and GEM, connector C1BP02-B, pin 50, circuit CLS08A (VT/GN), wiring harness side.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW the GEM. CHECK system operates correctly
No
LOCATE and RECTIFY the break in the circuits between the GEM and the left-hand rear lamp with the aid of the Wiring Diagrams. CHECK system operates correctly
B14: CHECK GROUND SUPPLY OF LEFT-HAND REAR LAMP FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect rear lamp from connector C4LS18-A.

3
Measure the resistance between the left-hand rear lamp, connector C4LS18-A, pin 3, circuit GD150C (BK/WH), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW left-hand rear lamp. CHECK system operates correctly
No
LOCATE and RECTIFY the break in circuit GD150C (BK/WH) between the left-hand rear lamp and soldered connection SP549 with the aid of the Wiring Diagrams. CHECK system operates correctly
B15: CHECK THE VOLTAGE SUPPLY OF THE LEFT-HAND REAR LAMP (TAILGATE) FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect Rear lamp (tailgate) from connector C4LS35.
3
Ignition switch in position II.
4
SWITCH ON the parking lamps.

5
Measure the voltage between the left-hand rear lamp (tailgate), connector C4LS35, pin 3, circuit CLS08B (VT/GN), wiring harness side and ground.

Does the meter display battery voltage?
Yes
No
LOCATE and RECTIFY the break in the circuits between the rear lamp and the rear lamp (tailgate) with the aid of the Wiring Diagrams. CHECK system operates correctly
B16: CHECK THE GROUND CONNECTION OF THE LEFT-HAND REAR LAMP (TAILGATE) FOR OPEN CIRCUIT
1
Ignition switch in position 0.

2
Measure the resistance between the left-hand rear lamp (tailgate), connector C4LS35, pin 2, circuit GD150P (BK/WH), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
INSTALL A NEW rear lamp (tailgate). CHECK system operates correctly
No
LOCATE and RECTIFY the break in circuit GD150P (BK/WH) between the rear lamp (tailgate) and soldered connection SP534 with the aid of the Wiring Diagrams. CHECK system operates correctly
B17: CHECK THE SHARED VOLTAGE SUPPLY OF THE RIGHT-HAND REAR LAMP FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-B.

3
Measure the resistance between the GEM, connector C1BP02-B, pin 51, circuit CLS09A (WH/OG), wiring harness side and ground.

Is a resistance of less than 10,000 Ohm registered?
Yes
RENEW the GEM. CHECK system operates correctly
No
LOCATE and RECTIFY breaks in circuit CLS09A (WH/OG) between GEM and soldered connection SP568 using the wiring diagrams. CHECK system operates correctly
B18: CHECK THE VOLTAGE SUPPLY TO THE RIGHT-HAND REAR LAMP FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect rear right lamp from connector C4LS19-A.
3
Ignition switch in position II.
4
SWITCH ON the parking lamps.

5
Measure the voltage between the rear right-hand lamp, connector C4LS19-A, pin 2, circuit CLS09B (WH/OG), wiring harness side and ground.

Does the meter display battery voltage?
Yes
No
LOCATE and RECTIFY break in circuit CLS09B (WH/OG) between soldered connection SP568 and right-hand rear lamp using the wiring diagrams. CHECK system operates correctly
B19: CHECK THE GROUND SUPPLY TO THE RIGHT-HAND REAR LAMP FOR OPEN CIRCUIT
1
Ignition switch in position 0.

2
Measure the resistance between the right-hand rear lamp, connector C4LS19-A, pin 3, circuit GD152A (BK/BU), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
RENEW right-hand rear lamp. CHECK system operates correctly
No
LOCATE and RECTIFY the break in circuit between the right-hand rear lamp and soldered connection SP600 with the aid of the Wiring Diagrams. CHECK system operates correctly
B20: CHECK THE VOLTAGE SUPPLY TO THE RIGHT-HAND REAR LAMP (TAILGATE) FOR OPEN CIRCUIT
1
Ignition switch in position 0.
2
Disconnect right-hand rear lamp (tailgate) from connector C4LS36.
3
Ignition switch in position II.
4
SWITCH ON the parking lamps.

5
Measure the voltage between the right-hand rear lamp (tailgate), connector C4LS36, pin 3, circuit CLS09F (WH/OG), wiring harness side and ground.

Does the meter display battery voltage?
Yes
No
LOCATE and RECTIFY the break in the circuit between soldered connection SP568 and the right-hand rear lamp (tailgate) with the aid of the Wiring Diagrams. CHECK system operates correctly
B21: CHECK THE GROUND SUPPLY TO THE RIGHT-HAND REAR LAMP (TAILGATE) FOR OPEN CIRCUIT
1
Ignition switch in position 0.

2
Measure the resistance between the right-hand rear lamp (tailgate), connector C4LS36, pin 2, circuit GD150W (BK/WH), wiring harness side and ground.

Is a resistance of less than 2 Ohms registered?
Yes
INSTALL A NEW right-hand rear lamp (tailgate). CHECK system operates correctly
No
LOCATE and RECTIFY the break in circuit GD150W (BK/WH) between the right-hand rear lamp (tailgate) and soldered connection SP534 with the aid of the Wiring Diagrams. CHECK system operates correctly

PINPOINT TEST C : THE PARKING, REAR OR LICENSE LAMPS ARE PERMANENTLY ON

TEST CONDITIONS DETAILS/RESULTS/ACTIONS
C1: DETERMINE THE FAULT CONDITION
1
Ignition switch in position II.
2
CHECK the parking lamps.

Are all parking lamps permanently lit?
Yes
No
- Left-hand front parking lamp permanently lit: GO to C3.
- Right-hand front parking lamp permanently lit:GO to C3.
- Left-hand rear parking lamps permanently lit: GO to C4.
- Right-hand rear parking lamps permanently lit: GO to C4.
- License plate lamps permanently lit: GO to C5.
C2: RULE OUT THE LIGHTS CONTROL MODULE AS A POSSIBLE CAUSE OF THE FAULT
1
Ignition switch in position 0.
2
Disconnect fuse F33 (5 A) (EJB).
3
Ignition switch in position II.
4
CHECK the parking lamps.

Are all parking lamps permanently lit?
Yes
CHECK the GEM with the aid of the diagnostic unit and RENEW IT if required. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No
INSTALL A NEW lights control module. CHECK system operates correctly
C3: CHECK THE CIRCUIT BETWEEN THE GEM AND THE HEADLAMP UNIT FOR A SHORT TO BATTERY VOLTAGE
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-A.
3
Ignition switch in position II.
4
CHECK the parking lamps.

Is one of the front parking lamps permanently lit?
Yes
- Left-hand parking lamp permanently lit: LOCATE and RECTIFY the short to battery voltage in the circuits connected to the GEM, connector C1BP02-A, pin 39 with the aid of the Wiring Diagrams. CHECK system operates correctly
- Right-hand parking lamp permanently lit: LOCATE and RECTIFY the short to battery voltage in the circuits connected to the GEM, connector C1BP02-A, pin 40 with the aid of the Wiring Diagrams. CHECK system operates correctly
No
CHECK and if necessary RENEW the GEM. CHECK system operates correctly
C4: CHECK THE CIRCUIT BETWEEN THE GEM AND THE REAR PARKING LAMPS FOR A SHORT TO BATTERY VOLTAGE
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-B.
3
Ignition switch in position II.
4
CHECK the parking lamps.

Are the rear parking lamps permanently lit on one side?
Yes
- Left-hand rear parking lamp permanently lit: LOCATE and RECTIFY the short to battery voltage in the circuits connected to the GEM, connector C1BP02-B, pin 50 with the aid of the Wiring Diagrams. CHECK system operates correctly
- Right-hand rear parking lamp permanently lit: LOCATE and RECTIFY the short to battery voltage in the circuits connected to the GEM, connector C1BP02-B, pin 51 with the aid of the Wiring Diagrams. CHECK system operates correctly
No
CHECK and if necessary RENEW the GEM. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
C5: CHECK THE CIRCUITS BETWEEN THE GEM AND THE LICENSE PLATE LAMPS FOR A SHORT TO BATTERY VOLTAGE
1
Ignition switch in position 0.
2
Disconnect GEM from connector C1BP02-B.
3
Ignition switch in position II.
4
CHECK the license plate lamps.

Do the license plate lamps illuminate continuously?
Yes
LOCATE and RECTIFY the short to battery voltage in the circuits connected to the GEM, connector C1BP02-B, pin 52 with the aid of the Wiring Diagrams. CHECK system operates correctly
No
CHECK and if necessary RENEW the GEM. CHECK system operates correctly If the concern persists:
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

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