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

See More:

Toyota Tundra Service Manual > Forward Recognition Camera System: Terminals Of Ecu
TERMINALS OF ECU NOTICE: DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the inspection has been completed. Do not apply excessive force to the W9 forward recognition camera connector. CHECK FORWARD RECOGNITION CAM ...

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

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