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INTERIOR LIGHTING
Symptom:
BCM-COURTESY LAMP 1 OUTPUT SHORT
When Monitored and Set Condition:
BCM-COURTESY LAMP 1 OUTPUT SHORT
When Monitored: Ignition and Courtesy Lamps on.
Set Condition: BCM detects the output driver status low.
INTERMITTENT CONDITION
OVERHEAD CONSOLE
COURTESY LAMP 1 OUTPUT CIRCUIT SHORT TO GROUND
BODY CONTROL MODULE
TEST
1
Turn the ignition on.
With the DRBIII , erase all BCM DTCs.
Turn the Courtesy lamps on.
With the DRBIII , read the active DTCs.
Does the DRBIII display Courtesy Lamp 1 Output Short?
Yes → Go To 2
→ The condition that caused the symptom is currently not present.
No
2
Turn the ignition off.
Disconnect the Overhead Console harness connector.
Turn ignition on.
With the DRBIII , read the active BCM DTCs.
Does the DRBIII display Overhead Lamp 1 Output Short?
Yes → Go To 3
→ Replace the Overhead Console.
No
3
Turn the ignition off.
Disconnect the BCM C3 harness connector.
Disconnect the Overhead Console harness connector.
Measure the resistance between ground and the Courtesy Lamp 1 Output circuit.
Is the resistance below 5.0 ohms?
Yes → Repair the Courtesy Lamp 1 Output circuit for a short to ground.
→ Replace and program the Body Control Module in accordance
No
POSSIBLE CAUSES
ACTION
Inspect the related wiring for a possible intermittent condition.
Look for any chafed, pierced, pinched, or partially broken wires.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
646
APPLICABILITY
All
All
All
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