Toyota Tundra Service Manual: Lost Communication With Image Processing Module "A" (U023A)

Toyota Tundra Service Manual / Vehicle Interior / Lighting / Lighting System / Lost Communication With Image Processing Module "A" (U023A)

DESCRIPTION

These DTCs are stored when the CAN communication system is malfunctioning.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
U023A	Lost Communication With Image Processing Module "A"	The main body ECU (multiplex network body ECU) does not receive data from the forward recognition camera for approximately 10 seconds or more.	CAN communication system Forward recognition camera Main body ECU (multiplex network body ECU)

PROCEDURE

1.	CHECK FOR DTC

(a) Clear the DTCs.

Click here

(b) Check for DTCs.

Click here

OK:

DTC U023A is not output.

USE SIMULATION METHOD TO CHECK

GO TO CAN COMMUNICATION SYSTEM

Toyota Tundra Service Manual > Navigation System: Radio Broadcast cannot be Received or Poor Reception
PROCEDURE 1. CHECK IF RADIO AUTO-SEARCH FUNCTIONS PROPERLY (a) Check the radio automatic station search function by activating it. OK: Automatic station search function stops on a station. OK USE SIMULATION METHOD TO CHECK NG 2. CHECK OPTIONAL COMPONENTS (a) Check if any optional components that may ...

Toyota Tundra Owners Manual