DTC U0126: Lost Communication With Steering Angle Sensor Module: Description

WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

The PSCM monitors the HS-CAN bus when the ignition has been on for more than 5 seconds, when the voltage to the PSCM is greater than 9 volts and when there are no DTCs present that are inhibiting PSCM operation. The SASM is attached to the SCCM and sends steering angle information directly to the SCCM. The SCCM then sends the information as messages to the PSCM over the HS-CAN bus.

DTC U0126:00 (Lost Communication With the Steering Angle Sensor Module: No Sub Type Information) - This DTC will set if communication between the PSCM and the SCCM fails. The SCCM sends a steering angle message to the PSCM. If this message is missing for more than 40 milliseconds, then the PSCM will set U0126:00.