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EXTERIOR LIGHTING
HEADLAMP SWITCH INPUT OPEN-BCM —
TEST
4
Turn the ignition off to the lock position.
Disconnect the Body Control Module C5 harness connector.
Disconnect the Headlamp Switch harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance of the Headlamp Switch MUX Return circuit from the Body
Control Module connector to the Headlamp Switch harness connector.
Is the resistance above 5.0 ohms?
Yes → Repair the Headlamp Switch MUX Return circuit for an open.
→ Replace the Body Control Module in accordance with the Service
No
5
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?
Yes → Repair as necessary.
→ Test Complete.
No
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Information.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Continued
426
APPLICABILITY
All
All
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