Toyota Tundra Service Manual: Multiplex Communication Circuit (B1499/99)

Toyota Tundra Service Manual / Vehicle Interior / Air Conditioning / Air Conditioning System(for Manual Air Conditioning System) / Multiplex Communication Circuit (B1499/99)

DESCRIPTION

This DTC outputs when CAN communication error is occurred.

DTC Code

DTC Detection Condition

Trouble Area

B1499/99

Open in CAN communication circuit

CAN communication system

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTC (see page ).

(b) Check for DTC (see page ).

Result

Result

Proceed to

DTC B1499/99 is output

A

DTC B1499/99 is not output

B
A

GO TO CAN COMMUNICATION SYSTEM

B

USE SIMULATION METHOD TO CHECK

    BUS IC Communication Malfunction (B1497/97)

    Blower Motor Circuit

    See More:

    Toyota Tundra Service Manual > Can Communication System: ECM Communication Stop Mode
    DESCRIPTION Detection Item Symptom Trouble Area ECM Communication Stop Mode Any of the following conditions are met: Communication stop for "ECM (Engine)" is indicated on the "Communication Bus Check" screen of the Techstream. Communication system DTCs (DTCs that start with U) that correspond to "EC ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2025 Copyright www.ttundra.com
    0.0346