U0104

POWER STEERING: ELECTRONIC POWER STEERING SYSTEM: U0073,U0104,U0129,U0130,U0293: Control Module Communication Bus OFF

DTC U0073 - Control Module Communication Bus OFF

DTC U0104 - Lost Communication with Driving Support ECU

DTC U0129 - Lost Communication with Skid Control ECU

DTC U0130 - Lost Communication with VGRS

DTC U0293 - Lost Communication with HV ECU

DESCRIPTION

The power steering ECU receives signals from the ECM and skid control ECU and steering control ECU via CAN communication.





HINT:
- When two or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harness of each ECU.
- If the power steering ECU assembly detects DTC U0129 only, it adjusts the amount of power assistance for a speed of 100 km/h (62 mph) and continues system control.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC
(a) Using the Techstream, check for DTCs.
NEXT -- GO TO CAN COMMUNICATION SYSTEM TROUBLESHOOTING