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

1.

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.

A

USE SIMULATION METHOD TO CHECK

B

GO TO CAN COMMUNICATION SYSTEM

    Terminals Of Ecu

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

    See More:

    Toyota Tundra Service Manual > Oil Pump: Installation
    INSTALLATION PROCEDURE 1. INSTALL WATER INLET PIPE (a) Apply soapy water to 2 new O-rings and install them to the water inlet pipe. (b) Install the water inlet pipe to the No. 1 heat exchanger cover. 2. INSTALL TIMING CHAIN COVER SUB-ASSEMBLY (a) Apply a light coat of engine oil to a new oil pump ga ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2025 Copyright www.ttundra.com
    0.0343