Theft Deterrent System (For Hatchback) Unlock Warning Switch Circuit

Vehicle Interior. Yaris. Ncp93, 131
Theft Deterrent Keyless Entry. Yaris. Ncp93, 131

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING TECHSTREAM

INSPECT UNLOCK WARNING SWITCH ASSEMBLY

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - UNLOCK WARNING SWITCH ASSEMBLY - BODY GROUND)

THEFT DETERRENT SYSTEM (for Hatchback) - Unlock Warning Switch Circuit


DESCRIPTION

The key unlock warning switch assembly comes on when the ignition key is inserted into the ignition key cylinder and goes off when the ignition key is removed.

WIRING DIAGRAM


Yaris. Ncp93, 131.Theft Deterrent Keyless Entry.Engine Immobiliser System (For Sedan).Theft Deterrent System (For Hatchback) Unlock Warning Switch Circuit


INSPECTION PROCEDURE

1.READ VALUE USING TECHSTREAM

  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

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

  1. According to the display on the Techstream, read the Data List.

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Key Unlock Warning SW
    		Unlock warning switch / OFF or ON
    		OFF: Key is removed from ignition key cylinder
    ON: Key is inserted into ignition key cylinder
    		-
    OK:
    When the key is in the ignition key cylinder, "ON" appears on the screen.


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (YARIS_NCP93 RM00000368901IX.html)

2.INSPECT UNLOCK WARNING SWITCH ASSEMBLY

  1. Inspect the unlock warning switch assembly (YARIS_NCP93 RM000001GD201RX.html).



NG
REPLACE UNLOCK WARNING SWITCH ASSEMBLY (YARIS_NCP93 RM000001GD401JX.html)
OK


3.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - UNLOCK WARNING SWITCH ASSEMBLY - BODY GROUND)

  1. Disconnect the D143 main body ECU connector.

  1. Disconnect the D111 unlock warning switch assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    D143-17 (KSW) - D111-2
    		Always
    		Below 1 Ω
    D143-17 (KSW) - Body ground
    		Always
    		10 kΩ or higher
    D111-1 - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU (YARIS_NCP93 RM000003TOE00CX.html)