Step | Action | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Body Control System Schematics Connector End View Reference: Lighting Systems Connector End Views , Computer/Integrating Systems Connector End Views or Master Electrical Component List in Computer/Integrating Systems | |||||||||
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 | Are all courtesy lamps inoperative? | Go to Step 5 | Go to Step 4 | ||||||
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 | Are the courtesy lamps inoperative from a specific switch only? | Go to Step 6 | Go to Step 11 | ||||||
6 | Inspect the following related body control module (BCM), driver door module (DDM), passenger door module (PDM) data parameters, and check for a ground signal on the liftgate ajar signal circuit of the BCM with the liftgate open. Refer to Scan Tool Data List and Scan Tool Data Definitions for typical values and definitions:
Was a problem found? | Go to Step 7 | Go to Step 10 | ||||||
7 | 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 8 | Go to Step 9 | ||||||
8 | Test the signal and ground circuits of the affected input circuit for a short to ground, 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 10 | ||||||
9 | Inspect for poor connections at the harness connector of the affected switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 12 | ||||||
10 | Inspect for poor connections at the harness connector of the module in the affected circuit. Refer to Testing for Intermittent Conditions and Poor Connections and Connector 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 Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 15 | ||||||
12 | Replace the switch in the affected circuit. Did you complete the replacement? | Go to Step 16 | -- | ||||||
13 | Replace the module in the affected circuit. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. 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 | ||||||
