Chrysler 300M 2002 Service Manual page 1946

Symptom:
*FOG LAMPS WILL NOT TURN OFF
FOG LAMP RELAY OUTPUT CIRCUIT SHORT TO VOLTAGE
BODY CONTROL MODULE
FOG LAMP RELAY
HEADLAMP SWITCH
TEST
1 With the DRBIII read Body Control Module DTCs. If the DTC Headlamp Switch
Input Failure is present, return to the Symptom List and select the repair for that
symptom.
Turn the headlamp switch to the off position.
With the DRBIII , read the Headlamp Switch Voltage.
Does the DRBIII display Headlamp Switch Voltage between 4.3 and 4.8 Volts?
Yes → Go To 2
→ Replace the Headlamp Switch.
No
2 Remove the fog lamp relay from the Junction Block.
Did the fog lamps turn off?
Yes → Go To 3
→ Repair the relay output circuit for a short to voltage.
No
3 Note: The Fog Lamp Relay must be removed to start this test.
Reinstall the Fog Lamp Relay and listen for or feel for the relay to click.
Did the relay Click?
Yes → Go To 4
→ Replace the Fog Lamp Relay.
No
4 If there are no possible causes remaining, view repair.
Repair
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
EXTERIOR LIGHTING
223
APPLICABILITY
All
All
All
All