Test Description
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. 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: Tests the mirror heater control circuit for a short to ground.
- 3: Tests the door lock actuator lock control circuit for a short to ground.
- 4: Tests the door lock actuator unlock control circuit for a short to ground.
DTC B2276-B2277
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Door Control Module Schematics Connector End View Reference: Power Door Systems Connector End Views |
|||
| 1 | Did you perform the Power Door Systems Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Door Systems |
| 2 |
|
Go to Step 5 | Go to Step 3 |
| 3 | With a scan tool, observe the door lock motor parameter in the appropriate Door Control Module data list. Does the scan tool display Active? |
Go to Step 6 | Go to Step 4 |
| 4 | With a scan tool, observe the door unlock motor parameter in the appropriate Door Control Module data list. Does the scan tool display Active? |
Go to Step 7 | Go to Step 8 |
| 5 | Test the appropriate mirror heater control circuit 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 12 | Go to Step 8 |
| 6 | Test the appropriate door lock actuator lock control circuit 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 12 | Go to Step 9 |
| 7 | Test the appropriate door lock actuator unlock control circuit 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 12 | Go to Step 9 |
| 8 | Inspect for poor connections at the harness connector of the appropriate door module. 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 12 | Go to Step 10 |
| 9 | Inspect for poor connections at the harness connector of the appropriate door lock motor. 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 12 | Go to Step 11 |
| 10 | Replace the appropriate door module. Refer to Door Control Module Replacement . Did you complete the replacement? |
Go to Step 12 | - |
| 11 | Replace the appropriate door lock motor. Refer to Lock Replacement - Door . Did you complete the replacement? |
Go to Step 12 | - |
| 12 |
|
Go to Step 2 | System OK |