Steering Column. Dtc U0122/56 Lost Communication With Vehicle Dynamics Control Module

Steering. Lexus Gs430, Gs300. Uzs190 Grs190

Steering Column. Lexus Gs430, Gs300. Uzs190 Grs190

DTC U0122/56 Lost Communication with Vehicle Dynamics Control Module

DESCRIPTION

The steering control ECU receives signals from the skid control ECU via CAN communication.
If the steering control ECU detests an error in reception, it will output this DTC.

DTC No.	DTC Detecting Condition	Trouble Area
U0122/56	The steering control ECU detects an error in reception (from skid control ECU) in CAN communication.	CAN communication system Skid control ECU

WIRING DIAGRAM

Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System.
Dtc
U0122/56 Lost Communication With Vehicle Dynamics Control Module

INSPECTION PROCEDURE

1.CHECK DTC

Check for DTCs in the CAN communication system (Click here).

Result:

Result
Proceed to
DTC is not output.
A
DTC is output.
B

REPAIR CIRCUIT INDICATED BY DTC OUTPUT

REPLACE SKID CONTROL ECU

Result	Proceed to
DTC is not output.	A
DTC is output.	B