No Answer-Back

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

No Answer-Back

DESCRIPTION

In this case, wireless control functions are normal but the hazard warning light or wireless door lock buzzer answer-back function does not operate.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS
(a) Check the wireless door lock functions by operating the transmitter switches.
Result:






B -- HOW TO PROCEED WITH TROUBLESHOOTING
A -- Continue to next step.
2. PERFORM ACTIVE TEST USING TECHSTREAM (WIRELESS DOOR LOCK BUZZER, FLASHER RELAY)
(a) Connect a Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the tester ON.
(d) Enter the following menus: Body Electrical / Main Body / Active Test.
(e) According to the display on tester, perform the "Active Test".
Main Body ECU:






Result:






B -- INSPECT WIRELESS DOOR LOCK BUZZER
A -- Continue to next step.
3. CHECK HAZARD WARNING LIGHTS
(a) Check that the hazard warning lights flash when the hazard warning signal switch is pressed.
OK:
Hazard warning lights flash when hazard warning signal switch is pressed.
NG -- GO TO LIGHTING SYSTEM
OK -- REPLACE MAIN BODY ECU
4. INSPECT WIRELESS DOOR LOCK BUZZER




(a) Disconnect the A12 wireless door lock buzzer connector.
(b) Measure the resistance.
Standard resistance:





(c) Reconnect the wireless door lock buzzer connector.
NG -- REPLACE WIRELESS DOOR LOCK BUZZER
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - MAIN BODY ECU)




(a) Disconnect the A12 wireless door lock buzzer connector.
(b) Disconnect the 1B main body ECU connector.
(c) Measure the resistance.
Standard resistance:





(d) Reconnect the buzzer connector.
(e) Reconnect the main body ECU connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU