Normal Operation
WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The ABS module receives brake pedal switch status from the PCM over the high speed communication area network (HS-CAN) bus. If there is a failure in the switch or the HS-CAN bus diagnostic trouble code (DTC) C1446 will be set. A low fluid level condition in the master cylinder or a failure of the brake fluid level switch will also cause DTC C1446 to set.
Possible Causes
- Circuit open
- Brake fluid level
- Brake fluid level switch
- Brake pedal position switch
- ABS module