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 > Theft Deterrent System: Glass Breakage Sensor ECU Circuit
    DESCRIPTION When the glass breakage sensor detects the glass is broken (1st time), the sensor will set off an alarm for 20 seconds (pre-alarm). If the glass breakage sensor detects that more glass is broken (2nd time or more), the sensor will set off an alarm for 60 seconds. WIRING DIAGRAM CAUTION / ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2025 Copyright www.ttundra.com
    0.0225