Pinpoint Test AF: Abs (Anti-Lock Brake System) Module VIN (Vehicle Identification Number) Mismatch
Refer to: VEHICLE DYNAMIC SYSTEMS for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .
When the ignition is set to ON, the ABS module and the BCM share VIN information through the GWM over the CAN. If the ABS module has a different VIN than the BCM due to incorrect module configuration, a DTC sets.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS U3002:51 | Vehicle Identification Number: Not Programmed | Sets when the VIN message sent by the BCM, through the GWM and over the CAN, contains 'null' or 'Vin_not_programmed' instead of the actual VIN. This indicates the VIN has not yet been programmed. |
| ABS U3002:62 | Vehicle Identification Number: Signal Compare Failure | Sets when the VIN message sent by the BCM, through the GWM and over the CAN, does not match the VIN stored in the ABS module. |
Possible Sources
- BCM concern
- ABS module configuration