Pinpoint Test Ai: Abs Module Communication Concern With Pcm
WARNING: This page is about a different car, the 2023 Ford Bronco Sport. 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 PCM sends 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 PCM 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 PCM, refer to the Network Message Chart in NETWORK MESSAGE CHART .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS U0100:00 | Lost Communication With ECM/PCM 'A': No Sub Type Information | This DTC sets when the ABS module does not receive any messages from the PCM within the allowed time. |
| ABS U0401:00 | Invalid Data Received from ECM/PCM A: No Sub Type Information | This DTC sets when the ABS module receives invalid data in any of the following messages: accelerator pedal, brake pedal, driven wheel torque or neutral tow status. |
| ABS U0401:64 | Invalid Data Received from ECM/PCM A: Signal Plausibility Failure | This DTC sets when the ABS module receives invalid data in the gear selector position or driven wheel torque messages. |
| ABS U0401:7C | Invalid Data Received from ECM/PCM A: Slow Response | This DTC sets when the ABS module receives a message from the PCM indicating the driven wheel torque is insufficient for regenerative braking. |
| ABS U0401:86 | Invalid Data Received from ECM/PCM A: Signal Invalid | This DTC sets when the ABS module receives invalid data in the accelerator pedal message. |
Possible Sources
- Network communication concern
- PCM
Pinpoint Tests AI: ABS Module Communication Concern With PCM