DESCRIPTION When a communication error between the forward recognition camera and the power steering ECU (rack and pinion power steering gear assembly) is detected, the forward recognition camera notifies other ECUs and DTC U023A is stored.
CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
HINT: If DTC U023A is stored, the power steering system may be malfunctioning. Check for DTCs related to the power steering system first. (a) Check for DTCs. Chassis > EMPS > Trouble Codes
(a) Clear the DTCs. Chassis > LKA/LDA > Clear DTCs(b) Make sure that the DTC detection conditions are met. HINT: If the detection conditions are not met, the system cannot detect the malfunction. (c) Check for DTCs. Chassis > LKA/LDA > Trouble Codes
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Electronically Controlled Brake System(for Gasoline Model): How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS (a) Interview the customer and confirm the problem. Click here NEXT 3. CHECK DTC AND FREEZE FRAME DATA* (a) Check and record DTCs and Freeze Frame Data. for DTC Check / Cle ...