The body control module (BCM) supplies battery voltage to the courtesy lamps through the courtesy lamps supply voltage circuit when the BCM is awake. When the BCM sees the proper inputs it will ground the courtesy lamps low control circuit, and the courtesy lights will illuminate.
The BCM must command the courtesy lamps ON.
The BCM stores DTC B 22/32 in memory.
The numbers below refer to the step numbers on the diagnostic table.
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Interior Lights Schematics | |||
1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | |
Do the courtesy lamps illuminate? | Go to Diagnostic Aids | Go to Step 3 | |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 4 | |
4 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 7 | Go to Step 6 |
5 | Repair the short to battery voltage in the courtesy lamps low control circuit. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 7 | -- |
6 |
ImportantPerform the set up procedure for the body control module. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System. Replace the body control module. Refer to Body Control Module Replacement in Body Control System. Did you complete the replacement? | Go to Step 7 | -- |
7 |
Does the DTC reset? | Go to Step 2 | System OK |