Electro-Hydraulic Power Steering (EHPS)

U0126-00-LOST COMMUNICATION WITH STEERING ANGLE SENSOR

For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The Steering Angle Sensor (SAS) communicates with other controllers over the CAN C bus. The Electro-Hydraulic Power Steering (EHPS) Pump continuously monitors the bus activity and receives the messages it needs. If the EHPS Pump does not receive messages from the Steering Angle Sensor (SAS), this fault will set.

- When Monitored:

- With the ignition on.
- Battery voltage between 10 and 16 Volts.
- Ignition Off Draw (IOD) fuse installed.
- Anti-Lock Brake Module (ABS) is configured correctly.
- Set Condition:
If the Electro-Hydraulic Power Steering (EHPS) Pump fails to receive bus messages from the Steering Angle Sensor (SAS) for approximately 500 ms.





ACTIVE DTC
1. Ignition on,engine not running.
2. With a scan tool, read DTCs.

Is the status Active for this DTC?

Yes

- Antilock Brake Module (ABS) and perform the U0126-00-LOST COMMUNICATION WITH STEERING ANGLE SENSOR diagnostic procedure.

No

- Stored Lost Communication DTCs and perform the STORED LOST COMMUNICATION DTCS diagnostic procedure.