ENGINE IMMOBILISER SYSTEM (w/o Smart Entry and Start System) Door Courtesy Switch Circuit

DESCRIPTION

When an additional transponder key is registered, the transponder key ECU assembly detects the front door courtesy light switch open/closed condition, and enters the key registration mode.

WIRING DIAGRAM

A017CZSE04

INSPECTION PROCEDURE

Note

If the transponder key ECU is replaced, register the key and ECU communication ID.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH CIRCUIT)


    1. A017D54E12

      Disconnect the transponder key ECU connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      D37-7 (CTY) - Body ground

      Courtesy switch pushed

      (Door closed)

      		 10 kΩ or higher
      D37-7 (CTY) - Body ground

      Courtesy switch free

      (Door open)

      		 Below 1 Ω

    NG

    INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY Click here

    OK

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

  2. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY


    1. A017D0SE08

      Remove the driver side front door courtesy light switch Click here.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      1 - Switch body

      Courtesy switch pushed

      (Door closed)

      		 10 kΩ or higher
      1 - Switch body

      Courtesy switch free

      (Door open)

      		 Below 1 Ω

    NG

    REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY Click here

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSPONDER KEY ECU - FRONT DOOR COURTESY LIGHT SWITCH)