Test Description
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers on the diagnostic table.
- 2: This step test determines if the problem exists in the wiring.
- 3: This step test determines if an open exists in the body wiring harness extension harness.
- 7: After replacement of the BCM you must calibrate the new module for proper operation.
DTC B2615
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Interior Lights Schematics | |||
| 1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems |
| 2 | Test the courtesy lamps supply voltage circuit for an open, high resistance, short to voltage, or short to ground. Refer to CIRCUIT TESTING
and WIRING REPAIRS
in Wiring Systems. Did you find and correct the condition? |
Go to Step 8 | Go to Step 3 |
| 3 | Test the TBC 3 battery positive supply voltage circuit within the body wiring harness extension harness for continuity. Refer to CIRCUIT TESTING
in Wiring Systems. Is continuity present? |
Go to Step 4 | Go to Step 5 |
| 4 | Inspect for poor connections at the harness connectors 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 8 | Go to Step 7 |
| 5 | Inspect for poor connections at the body wiring harness extension harness connectors. 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 8 | Go to Step 6 |
| 6 | Replace the body wiring harness extension harness to the BCM. Refer to BODY WIRING HARNESS EXTENSION REPLACEMENT - BCM
in Body Control System. Did you complete the replacement? |
Go to Step 8 | - |
| 7 |
IMPORTANT:
Perform the setup procedure for the BCM. Replace the body control module (BCM). Refer to BODY CONTROL MODULE REPLACEMENT
in Body Control System.Did you complete the replacement? |
Go to Step 8 | - |
| 8 |
|
Go to Step 2 | System OK |