Test Description
The numbers below refer to the step numbers on the diagnostic table no steps have been omitted
- 2. Checks if the BCM has successfully completed the programming mode
- 3. Checks for a circuit malfunction between the BCM and the Passlock™ sensor, not allowing the BCM to complete the programming mode
To identify circuits referenced in testing, see WIRING DIAGRAMS .
DIAGNOSTIC PROCEDURE DTC B3031
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 | Was the BCM Diagnostic System Check performed? | -- | Go to Step 2 | Go to Diagnostic System Check - Theft Deterrent |
| 2 | 1. Turn the ignition switch on. 2. Clear BCM DTCs. 3. Turn the ignition switch off. 4. Turn the ignition switch to start, then to the on position. 5. Check for BCM DTCs. Does this DTC reset as a current DTC? |
-- | Go to Step 3 | Go to Step 5 |
| 3 | Using scan tool, check for these DTCs: * B2947 * B2957 * B2958 * B3033 Are any of these DTCs listed above set as current DTCs in the BCM? |
-- | Go to appropriate DTC testing in this article | Go to Step 4 |
| 4 | 1. Check the BCM connectors for a poor electrical connection, and repair as necessary. 2. If BCM connections are OK, then replace the BCM. Refer to REMOVAL & INSTALLATION under Body Control Module Replacement in Body Control System 3. Perform the Setup New BCM procedure. Refer to PROGRAMMING in Body Control System. Is the repair complete? |
-- | Go to Step 5 | -- |
| 5 | 1. Turn the ignition switch off. 2. Reinstall connectors/components removed. 3. Turn the ignition switch on. 4. Clear BCM DTCs. 5. Turn the ignition switch off. 6. Turn the ignition switch to start, then to the on position. 7. Check for BCM current DTCs. Are there any current BCM DTCs present? |
-- | Go to Diagnostic System Check - Theft Deterrent | System OK |