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 > Power Mirror Control System(w/ Memory): System Diagram
SYSTEM DIAGRAM 1. POWER MIRROR CONTROL SYSTEM Communication Table Sender Receiver Communication Signal Communication Line Main body ECU (multiplex network body ECU) Outer mirror control ECU assembly Mirror master switch signal Mirror control switch signal Mirror retract switch signal CAN ECM Outer m ...

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

Turn Signal Switch Circuit

Personal Light Assembly

See More:

Toyota Tundra Owners Manual

Toyota Tundra Service Manual