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 the DTC (see page ).

Result

Result	Proceed to
DTC B1499/99 is output	A
DTC B1499/99 is not output	B

GO TO CAN COMMUNICATION SYSTEM

USE SIMULATION METHOD TO CHECK

Toyota Tundra Service Manual > Can Communication System: Lost Communication with Gateway Module (U1002)
DESCRIPTION The main body ECU (multiplex network body ECU) stores this DTC when no signals can be received from the ECUs that have been memorized as those connected to the sub bus 1. When the main body ECU (multiplex network body ECU) receives a response signal from the ECUs connected to the sub bus ...

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