B1296

MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1296: Front Light ECU Communication Stop
B1296 - Front Light ECU Communication Stop

DESCRIPTION

This DTC is detected when communication between the front controller and gateway ECU stops for more than 10 seconds.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (FRONT CONTROLLER - BATTERY AND BODY GROUND)

(a) Disconnect the 1F and 1H front controller connectors.

(b) Measure the voltage according to the value(s) in the table below.

Voltage:





(c) Measure the resistance according to the value(s) in the table below.

Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK RESISTANCE OF COMMUNICATION LINE

(a) Disconnect the 1G, IR and E30 connectors.

(b) Measure the resistance according to the value(s) in the table below.

Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE FRONT CONTROLLER