Pinpoint Test H : U0100:00 - Abs (Anti-Lock Brake System) Module: Notes
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Module Communications Network for schematic and connector information.
Normal Operation and Fault Conditions
With the ignition ON, the PCM sends messages to the GWM over the HS-CAN1, the GWM relays these message to the ABS module over the HS-CAN2. 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 PCM failure, a GWM 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: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0100:00 | Lost Communication With ECM/PCM "A": No Sub Type Information | This DTC sets if the ABS module does not receive any messages from the PCM. |
Possible Causes
- Wiring, terminals or connectors
- Network communication concern
- GWM
- PCM
- ABS module