Ford Workshop Service and Repair Manuals > S-MAX.Galaxy 2006.5 (03.2006-) > Mechanical Repairs | 4 Electrical | 417 Lighting | 417-01 Exterior Lighting | Description and Operation | Diagnosis and Testing

General Procedures > < Parking, Rear and License Plate Lamps

Exterior Lighting - Trailer 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:The generic electronic module (GEM) is part of the central junction box (CJB).

NOTE:A new generic electronic module (GEM) always needs to be configured after installation. For this purpose, the vehicle-specific data are read out of the module to be changed using the diagnostic unit and transferred to the new module. REFER to:

Modul-Konfiguration (418-01, General Procedures),

Zentralelektrikmodul (GEM) (419-10, Diagnosis and Testing).

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:Ensure correct engagement of the wiring harness connectors.

NOTE:The maximum output voltage at the trailer socket is 13 Volt.

Verify the customer concern.

Visually inspect for obvious signs of electrical damage.

Visual Inspection Chart

Electrical
Fuse(s) Bulb(s) Connector Trailer socket Trailer Lamps Wiring loom

Resolve any obvious causes for a concern found during the visual inspection before carrying out any further tests.

If the concern persists after the visual inspection, PERFORM a fault diagnosis on the generic electronic module (GEM) using the diagnostic unit and RESOLVE the fault(s) displayed according to the fault description. CHECK system operates correctly

On a vehicle without stored fault(s), continue according to the Symptom Chart and the corresponding symptom.

After checking or rectifying the fault(s) and finishing the work, READ OUT the fault memory in the generic electronic module (GEM) and DELETE any saved faults. After performing a road test and CHECKING the system, READ OUT the fault memories again.

Trouble Code Table - Generic Electronic Module (GEM)

Self-test code	Description	Action
511B11	Short circuit in stoplamps circuit (short to ground)	GO to Pinpoint Test A.
511B12	Short circuit in stoplamps circuit (short to battery positive)	GO to Pinpoint Test C.
512011	Short circuit in stoplamps circuit (short to ground)	GO to Pinpoint Test A.
512012	Short circuit in backup lamps circuit (short to battery positive)	GO to Pinpoint Test C.
512611	Short circuit in clearance lamps circuit (short to ground)	GO to Pinpoint Test A.
512612	Short circuit in clearance lamps circuit (short to battery positive)	GO to Pinpoint Test C.
910262	Conflicting stoplamp input signals at the trailer module (TRM) (CAN bus and circuit)	GO to Pinpoint Test A.
9A7911	Short circuit in rear fog lamp circuit (short to ground)	GO to Pinpoint Test A.
9A7912	Short circuit in rear fog lamp circuit (short to battery positive)	GO to Pinpoint Test C.
9D0611	Short circuit in left-hand turn signal lamp circuit (short to ground)	GO to Pinpoint Test B.
9D0612	Short circuit in left-hand turn signal lamp circuit (short to battery positive)	GO to Pinpoint Test C.
9D0711	Short circuit in right-hand turn signal lamp circuit (short to ground)	GO to Pinpoint Test B.
9D0712	Short circuit in right-hand turn signal lamp circuit (short to battery positive)	GO to Pinpoint Test C.
C01000	Communication fault in the MS CAN bus	REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
C14000	No communications between the GEM and the trailer module (TRM)	REFER to: Kommunikations-Netzwerk (418-00, Diagnosis and Testing).
C30000	Trailer module (TRM) and software (CAN bus) not compatible	REFER to: Modul-Konfiguration (418-01, General Procedures).
E10000	Trailer module (TRM) not configured	REFER to: Modul-Konfiguration (418-01, General Procedures).
E10100	Trailer module (TRM) incorrectly configured	REFER to: Modul-Konfiguration (418-01, General Procedures).
F00042	Internal module fault - general memory fault	INSTALL A NEW trailer module (TRM)
F00051	Module programming fault - not programmed	REFER to: Modul-Konfiguration (418-01, General Procedures).
F00362	Fault in the power supply to the trailer module (TRM	GO to Pinpoint Test A.

Symptom chart

Symptom	Possible Sources	Action
Trailer lamps inoperative, OK on vehicle	* Fuse * Circuit(s) in vehicle * Circuit(s) in trailer * Trailer module (TRM) * Trailer socket	* GO to Pinpoint Test A.
The individual trailer lamp is inoperative	* Circuit(s) in vehicle * Circuit(s) in trailer * Trailer module (TRM) * Trailer socket	* GO to Pinpoint Test B.
The trailer lamps are on continuously	* Circuit(s) in vehicle * Circuit(s) in trailer * Trailer module (TRM) * Trailer socket	* GO to Pinpoint Test C.