Toyota Tundra Service Manual: Lost Communication with Front Camera Module (U023A)

Toyota Tundra Service Manual / Vehicle Interior / Meter / Gauge / Display / Meter / Gauge System / Lost Communication with Front Camera Module (U023A)

DESCRIPTION

The combination meter assembly communicates with the forward recognition camera via the CAN line.

DTC Code

DTC Detection Condition

Trouble Area

U023A

When either of following conditions is detected:

IG voltage 10.5 V or more
No communication with forward recognition camera continues for 10 seconds or more

CAN communication system

WIRING DIAGRAM

PROCEDURE

CHECK DTC

(a) Use the Techstream to check if the CAN communication system is functioning normally.

Click here

Result	Proceed to
DTC U023A is not output	A
DTC U023A is output	B

HINT:

If the CAN communication system DTC U023A and another DTC are output at the same time, perform troubleshooting for the CAN communication system DTC U023A first.

USE SIMULATION METHOD TO CHECK

GO TO CAN COMMUNICATION SYSTEM

Terminals Of Ecu

Lost Communication with ECM / PCM "A" (U0100)

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Toyota Tundra Service Manual: Lost Communication with Front Camera Module (U023A)

Terminals Of Ecu

Lost Communication with ECM / PCM "A" (U0100)

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