TEST
ACTION
APPLICABILITY
4
Turn the ignition off to the lock position.
Disconnect the Body Control Module harness connector.
Disconnect the Headlamp Switch harness connector.
Note: Check connectors - Clean/repair as necessary.
Ignition on, engine not running.
Measure the voltage of the Rear Fog Lamp Indicator circuit in the Headlamp Switch
harness connector.
Is the voltage above 0.5 volt?
All
Yes
→ Repair the Rear Fog Lamp Indicator circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 5
5
If there are no possible causes remaining, view repair.
All
Repair
Replace the Headlamp Switch.
Perform BODY VERIFICATION TEST - VER 1.
6
Turn the ignition off to the lock position.
Disconnect the Body Control Module harness connector.
Disconnect the Headlamp Switch harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Rear Fog Lamp Indicator circuit from the Body Control
Module harness connector to the Headlamp Switch harness connector.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Rear Fog Lamp Indicator circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 7
7
If there are no possible causes remaining, view repair.
All
Repair
Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
8
The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wiring while checking for shorts and open circuits.
Were there any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
793
INSTRUMENT CLUSTER
REAR FOG INDICATOR OUTPUT OPEN —
Continued