Courtesy Lamps Inoperative
Courtesy Lamps Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Interior Lights Schematics or Body Control System Schematics
in Body Control System Connector End View Reference: Lighting Systems Connector End Views , Body Control System Connector End Views in Body Control System or Master Electrical Component List in Wiring Systems |
|||
| 1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems |
| 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
andWiring 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 the following conditions:
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 |
IMPORTANT:
Perform the setup procedure for the replacement module as applicable. Replace the module in the affected circuit. Refer to the appropriate replacement procedure:
|
Go to Step 16 | - |
| 14 | Replace the inoperative bulb. Did you complete the repair? |
Go to Step 16 | - |
| 15 |
IMPORTANT:
Perform the setup procedure for the BCM. Replace the BCM. Refer to Body Control Module Replacement
in Body Control System.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 |