Step | Action | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Interior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views | |||||||||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | ||||||
2 | Verify that the courtesy/dome lamps are inoperative. Do the courtesy/dome lamps operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||||
3 | Is only one lamp inoperative? | Go to Step 4 | Go to Step 5 | ||||||
4 | Test the voltage supply and ground circuits of the inoperative lamp for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 14 | ||||||
5 | Is the TBC 2 fuse in the body fuse block open? | Go to Step 6 | Go to Step 7 | ||||||
6 | Test the battery positive voltage circuit of the body control module (BCM) for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 12 | ||||||
7 | Inspect for the following related body control module (BCM) data parameters. Refer to Scan Tool Data List and Scan Tool Data Definitions for typical values and definitions:
Was a problem found? | Go to Step 8 | Go to Step 11 | ||||||
8 | Disconnect and test the switch of the affected input circuit for proper continuity in the open and closed positions. Refer to Testing for Continuity in Wiring Systems. Is continuity correct in both positions? | Go to Step 9 | Go to Step 10 | ||||||
9 | Test the signal and ground circuits of the affected switch for the following:
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 11 | ||||||
10 | Inspect for poor connections at the harness connector of the affected switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 13 | ||||||
11 | Inspect for poor connections at the harness connector of the BCM. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 15 | ||||||
12 | Repair the courtesy lamp supply voltage circuit for a short to ground. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- | ||||||
13 | Replace the switch in the affected circuit. Refer to one of the following replacement procedures as applicable:
Did you complete the replacement? | Go to Step 16 | -- | ||||||
14 | Replace the inoperative bulb. Did you complete the repair? | Go to Step 16 | -- | ||||||
15 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 16 | -- | ||||||
16 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 | ||||||
