Normal Operation
WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
- DTC C1278 (Steering Wheel Angle 1 and 2 Signal Faulted) - an on-demand DTC that sets when the Headlamp Control Module (HCM) receives incorrect steering wheel angle data from the Steering Angle Sensor Module (SASM).
This pinpoint test is intended to diagnose the following:
- HCM
- SASM