Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Normal Operation and Fault Conditions
2021 Ford Edge SE, 4WDSECTION Normal Operation and Fault Conditions
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
With the ignition ON, the SIMA sends messages to the ABS module over the HS-CAN 2. If the ABS module does not receive these messages within a certain time frame (usually less than 1 second), the ABS module sets DTCs.
PPT CN ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Setting Conditions |
|---|---|---|
| U01B7:00 | Lost Communication with Switch Input Module A: No Sub Type Information | This DTC sets if the steering wheel switch messages from the SIMA contain invalid data or are missing for the allotted time. |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.