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 > Occupant Classification System: Front Occupant Classification Sensor LH Circuit Malfunction (B1780)
DESCRIPTION The front occupant detection sensor LH circuit consists of the occupant classification ECU and the front occupant detection sensor LH. DTC B1780 is set when a malfunction is detected in the front occupant detection sensor LH circuit. DTC Code DTC Detection Condition Trouble Area B1780 On ...

Toyota Tundra Owners Manual