Test Description
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The number(s) below refer to the step number(s) on the diagnostic table.
- 2: Tests to see if the correct VIN is programmed in the PCM.
- 4: Tests to see if the BCM has been replaced.
- 5: Tests to see if the correct VIN is programmed in the BCM.
DTC B1001
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: SIR Schematics | |||
| 1 | Did you perform the Diagnostic System Check - SIR? | Go to Step 2 | Go to Diagnostic System Check - SIR |
| 2 |
|
Go to Step 4 | Go to Step 3 |
| 3 | Use a scan tool and/or the techline machine to program the correct VIN into the PCM. Did you complete the action? |
Go to Step 8 | - |
| 4 | Was the BCM replaced? | Go to Step 6 | Go to Step 5 |
| 5 | With a scan tool, verify that the BCM is programmed with the correct VIN by comparing the VIN that is stored in the BCM to the VIN that is stored in the PCM. Does the scan tool indicate that the BCM is programmed with the correct VIN? |
Go to Step 7 | Go to Step 6 |
| 6 | Follow the instructions on the scan tool under BCM SPECIAL FUNCTIONS to properly reprogram the BCM. Refer to Body Control Module (BCM) Programming/RPO Configuration
in Body Control System. Did you complete the action? |
Go to Step 8 | - |
| 7 | Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Did you complete the replacement? |
Go to Step 8 | - |
| 8 |
|
Go to Step 2 | System OK |