Normal Operation and Fault Conditions
WARNING: This page does not describe the selected car, but rather 38 other vehicles, including the 2024 Ford F-550 Super Duty, 2024 Ford F-450 Super Duty, 2024 Ford F-350 Super Duty, 2024 Ford F-250 Super Duty, and 2023 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
With the ignition ON, the PCM sends messages to the SASM through the GWM over the HS-CAN 2. If the SASM does not receive these messages within a certain time frame (usually less than 1 second), the SASM sets a DTC. For information on the messages sent to the SASM by the PCM, refer to the Network Message Chart in Description and Operation of the Anti-Lock Brake System (ABS) and Stability Control article.
PPT AW SASM DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0100:00 | Lost Communication With ECM/PCM "A": No Sub Type Information | Sets in continuous memory and on-demand when the SASM detects any of the PCM messages are missing. This can be due to a PCM failure, a circuit failure on the HS-CAN or an excessive load on the network. |