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 Owners Manual > Maintenance: General maintenance
    Listed below are the general maintenance items that should be performed at the intervals specified in the "Owner's Warranty Information Booklet" or "Owner's Manual Supplement/Scheduled Maintenance Guide". It is recommended that any problem you notice should be brought to the attention of your Toyot ...

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