Pinpoint Test Cl: Abs (Anti-Lock Brake System) Module Communication Concern With APIM (Sync Module): Notes
Refer to MODULE COMMUNICATIONS NETWORK for schematic and connector information.
Normal Operation and Fault Conditions
With the ignition ON, the APIM sends messages to the GWM over the HS-CAN3, the GWM relays these messages to the ABS module over the FD-CAN. If the ABS module does not receive these messages within the specified time frame, the ABS module sets Diagnostic Trouble Codes (DTCs). This can be due to a APIM failure, a circuit failure on the CAN or an excessive load on the network. For information on the messages sent to the ABS module by the APIM, REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS U0253:00 | Lost Communication With Accessory Protocol Interface Module: No Sub Type Information | Sets if the APIM messages are missing. |
Possible Sources
- Wiring, terminals or connectors
- Network communication concern
- APIM
- ABS