Pinpoint Test BQ: Abs Module Communication Concern With The IPMA
Normal Operation and Fault Conditions
The IPMA is an internal component of the Advanced Driver Assistance Systems (ADAS) module.
With the ignition ON, the IPMA sends messages to the ABS module the over the HS-CAN2. If the ABS module does not receive these messages within a certain time frame, the module sets Diagnostic Trouble Codes (DTCs). This can be due to an IPMA failure, a circuit failure on the network or an excessive load on the network.
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 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 - part of the Advanced Driver Assistance Systems (ADAS) module