Pinpoint Test BQ: Abs Module Communication Concern With The IPMA
WARNING: This page is about a different car, the 2023 Ford Bronco. However, it is still accessible from the selected car via links, so may be relevant.
Normal Operation and Fault Conditions
With the ignition ON, the IPMA sends messages to the GWM over the HS-CAN2. The GWM relays these messages to the ABS module over the FD-CAN. If the ABS module does not receive these messages within the allotted time frame or if the messages contain invalid data, the module sets a DTC. This can be due to a IPMA failure, a circuit failure on the network or an excessive load on the network. For information on the messages sent to the ABS module by the IPMA, refer to Network Message Chart , Description and Operation in the Service Articles.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS U023A:00 | Lost Communication With Image Processing Module A: No Sub Type Information | This DTC sets when the ABS module does not receive any messages from the IPMA within the allowed time. |
| ABS U053B:00 | Invalid Data Received From Image Processing Module A: No Sub Type Information | This DTC sets when the ABS module receives messages from the IPMA, but the messages contain invalid data. |
Possible Sources
- Network communication concern
- IPMA