No Answer-Back (Hazard Warning Light)

DESCRIPTION

If there is no answer-back of the hazard warning lights while the wireless control function is operating normally, the hazard warning light signal output from the multiplex network body ECU may be malfunctioning.

NOTICE:

Confirm that the answer-back function has been switched on as a result of customization before starting troubleshooting.

WIRING DIAGRAM

INSPECTION PROCEDURE

1. CHECK WIRELESS DOOR LOCK FUNCTION

1. Check that the wireless door lock functions operate when the transmitter is used (Click here).
   

   Result:

   Condition	Proceed to
   Wireless door lock functions operate normally but hazard warning light answer-back does not occur	A
   Wireless door lock functions do not operate	B (Click here)

B	GO TO FLOW CHART

A

2. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (HAZARD WARNING LIGHT)

1. Connect the intelligent tester to the DLC3.

2. Turn the ignition switch to the ON position and turn the intelligent tester main switch on.

3. Select the ACTIVE TEST mode on the intelligent tester.

   Body: 

   Item (Display)	Vehicle Condition / Test Details	Diagnostic Note
   Hazard	Turns the turn signal flasher relay ON / OFF	Observe headlight and rear combination light for correct operation

4. Check that "ON" and "OFF" of the hazard warning lights on the headlight and rear combination light turn on and off when the intelligent tester is used.

   OK:

   The hazard warning lights turn on or off in accordance with commands of the intelligent tester.
   

NG	Go to step 3

OK
REPLACE INSTRUMENT PANEL JUNCTION BLOCK

3. CHECK HAZARD WARNING LIGHT

1. Check that the hazard warning lights flash continuously when the hazard warning light switch is pressed.

   OK:

   Hazard warning lights flash continuously.
   

NG	INSPECT LIGHTING SYSTEM

OK
REPLACE INSTRUMENT PANEL JUNCTION BLOCK