Toyota Tundra Service Manual: 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)

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    See More:

    Toyota Tundra Service Manual > Can Communication System: Check Bus 2 Line for Short to GND
    DESCRIPTION There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 18 (CA4H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU (network gateway ECU) and termin ...

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