Ford Thunderbird 2003 Workshop Manual

2003 Thunderbird Workshop Manual
SECTION 417-01: Exterior Lighting
DIAGNOSIS AND TESTING
Turn Signal and Hazard Lamps
Refer to Wiring Diagrams Cell 90 for schematic and connector information.
Special Tool(s)
73III Automotive Meter
105-R0057 or equivalent
Worldwide Diagnostic System (WDS)
418-F224,
New Generation STAR (NGS) Tester
418-F052, or equivalent diagnostic tool with appropriate adapter cable
Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart
Mechanical
Multifunction switch Battery junction box (BJB) fuse(s):
3 (10A) (LH rear lamp)
7 (10A) (RH rear lamp)
Central junction box (CJB) fuse(s):
8 (5A) (RH front parking/turn lamp)
10 (5A) (LH front parking/turn lamp)
Circuitry
Bulbs
Front electronic module (FEM)
Rear electronic module (REM)
Instrument cluster
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
NOTE: Make sure the headlamp switch is in the OFF position.
4. If the cause is not visually evident, connect the diagnostic tool to the data link connector and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does
not communicate with the vehicle:
check that the program card is correctly installed.
check the connections to the vehicle.
check the ignition switch position.
5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
6. Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
SCP, ISO or UBP circuits, all electronic control units no response/not equipped, refer to
No response/not equipped for FEM, refer to
No response/not equipped for REM, refer to
No response/not equipped for instrument cluster, refer to
SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the FEM.
7. If the DTCs retrieved are related to the concern, go to the Front Electronic Module (FEM) Diagnostic Trouble Code (DTC) Index, the Rear Electronic Module (REM) Diagnostic
Trouble Code (DTC) Index or the Instrument Cluster Diagnostic Trouble Code (DTC) Index.
8. If multiple symptoms exist, check the Switched System Power (SSP) Relay Index before proceeding to the next step. Refer to
9. If no DTCs related to the concern are retrieved, GO to
NOTE: For a complete master list of DTCs, refer to
Front Electronic Module (FEM) Diagnostic Trouble Code (DTC) Index
DTC Description
B1342 ECU Is Defective
B1499 Lamp Turn Signal Left Circuit Failure
B1501 Lamp Turn Signal Left Circuit Short to Battery
B1503 Lamp Turn Signal Right Circuit Failure
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Electrical
Section 418-00.
Section 418-00.
Section 413-00.
Symptom Chart to continue diagnostics.
Section 418-00.
Source
FEM CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved, INSTALL a new FEM. REFER to
FEM If inoperative, GO to Pinpoint Test
If always on, GO to Pinpoint Test
FEM GO to Pinpoint Test Q.
FEM If inoperative, GO to Pinpoint Test
If always on, GO to Pinpoint Test
2003 Thunderbird Workshop Manual
Section 418-00.
Headlamps in this section.
Action
Q.
R.
Q.
R.
Page 1 of 7
Procedure revision date: 03/04/2003
Section 418-00.
6/27/2011