U1105

POWER STEERING: POWER STEERING SYSTEM: U0129,U0130,U1104,U1105: Lost Communication with Brake System Control Module
U1105 - Lost Communication with Parking Assist ECU

DESCRIPTION

The power steering ECU inputs and outputs driving support ECU, parking assist ECU, skid control ECU, and steering control ECU signals via CAN communication.





HINT
* When 2 or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harness of each ECU.
* If the power steering ECU 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 Power Steering System.

Result





B -- GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) How to Proceed With Troubleshooting

A -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting