No Answer-Back

DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: No Answer-Back

No Answer-Back

DESCRIPTION

In some cases, wireless control functions are normal but the hazard warning light answer-back function is not. In such a case, the multiplex network body ECU hazard warning light signal output may be malfunctioning.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK WIRELESS DOOR LOCK FUNCTIONS
(a) Check that the wireless door lock functions by operating the transmitter switch.

HINT: When the wireless door LOCK/UNLOCK operation functions normally, it can be assumed that the transmitter signal is being properly input to the multiplex network body ECU.

NG -- GO TO FLOW CHART
OK -- Continue to next step.
2. CHECK HAZARD WARNING LIGHTS
(a) Check that the hazard warning lights blink when the hazard warning signal switch is pressed.
OK:
Hazard warning lights blink.
NG -- REPAIR OR REPLACE HAZARD WARNING SWITCH ASSEMBLY
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (TURN SIGNAL FLASHER RELAY - DRIVER SIDE J/B ASSEMBLY)





(a) Disconnect the T11 turn signal flasher relay connector.
(b) Disconnect the 1L driver side J/B connector.
(c) Check the resistance.
Standard Rresistance:





(d) Reconnect the turn signal flasher relay connector.
(e) Reconnect the driver side J/B connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE DRIVER SIDE JUNCTION BLOCK (MULTIPLEX NETWORK BODY ECU)