Wireless Door Lock Control System (W/O Entry And Start System) No Answer-Back

Body Electrical. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Door Lock. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)

CHECK WIRELESS DOOR LOCK CONTROL FUNCTION

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FLSH RELAY, TURN SIGNAL FLASHER RELAY)

CHECK HAZARD WARNING LIGHT

CHECK WIRE HARNESS (MAIN BODY ECU - TURN SIGNAL FLASHER RELAY)

WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Entry and Start System) - No Answer-Back


DESCRIPTION

In some cases, wireless door lock control functions are normal but the hazard warning lights answer-back function does not operate. In such cases, the main body ECU's hazard warning lights signal outputs may be malfunctioning.
NOTICE:
Troubleshooting should be started after confirming that the customize status of the answer-back function.

WIRING DIAGRAM


Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Door Lock.Power Door Lock Control System.Wireless Door Lock Control System (W/O Entry And Start System) No Answer-Back


INSPECTION PROCEDURE

1.READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter the following menus: Body / Main Body / Data List.

  1. Read the Data List according to the display on the intelligent tester.

    Main Body ECU:
    Item
    		Measurement Item/Range (Display)
    		Normal Condition
    		Diagnostic Note
    D-Door Lock Pos SW
    		Driver side door lock position switch signal / ON or OFF
    		ON: Driver side door is unlocked
    OFF: Driver side door is locked
    		-
    P-Door Lock Pos SW
    		Passenger side door lock position switch signal / ON or OFF
    		ON: Passenger side door is unlocked
    OFF: Passenger side door is locked
    		-
    OK:
    The intelligent tester should display as shown in the table according to door lock operation.


NG
Go to LIGHTING SYSTEM (Proceed to Door LOCK Position Circuit) (RAV4_ACA30 RM000002104002X.html)
OK


2.CHECK WIRELESS DOOR LOCK CONTROL FUNCTION

  1. Check the wireless door lock control functions by operating the transmitter switches.

    Result:
    Result
    		Proceed to
    Wireless door lock functions are normal but hazard warning light answer-back does not occur
    		A
    Wireless door lock functions are abnormal
    		B


B
Go to PROBLEM SYMPTOMS TABLE
A


3.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FLSH RELAY, TURN SIGNAL FLASHER RELAY)

  1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the hazard warning lights flash.

    Main body ECU:
    Item
    		Test Details
    		Diagnostic Note
    Hazard
    		Turns FLSH relay*1 (turn signal flasher relay*2) ON / OFF
    		-
    HINT:
    *1: for LHD
    *2: for RHD
    OK:
    Hazard warning lights are turned ON / OFF


OK
REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)
NG


4.CHECK HAZARD WARNING LIGHT

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

    Result:
    Result
    		Proceed to
    Hazard warning lights flash continuously (for RHD)
    		A
    Hazard warning lights do not flash continuously
    		B
    Hazard warning lights flash continuously (for LHD)
    		C


B
Go to LIGHTING SYSTEM

C
REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)
A


5.CHECK WIRE HARNESS (MAIN BODY ECU - TURN SIGNAL FLASHER RELAY)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Door Lock.Power Door Lock Control System.Wireless Door Lock Control System (W/O Entry And Start System) No Answer-Back

  1. Disconnect the IT junction block connector.

  1. Disconnect the E81 flasher connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    IT8-7 (HAZ) - E81-8 (HAZ)
    		Below 1 Ω
    IT8-7 (HAZ) or E81-8 (HAZ) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)