THEFT DETERRENT SYSTEM (w/ Smart Entry and Start System) Engine Hood Courtesy Switch Circuit

DESCRIPTION

The security courtesy switch is installed together with the hood lock. This switch turns off when the engine hood is opened and turns on when the engine hood is closed.

WIRING DIAGRAM

A01EMHDE01

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT HOOD LOCK ASSEMBLY (SECURITY COURTESY SWITCH)


    1. A01ELNAE02
      Text in Illustration
      *1

      Component without harness connected

      (Hood Lock Assembly (Security Courtesy Switch))
      *2 Opened
      *3 Locked

      Remove the hood lock assembly Click here.

    2. Disconnect the A7 security courtesy switch connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 - 2 Opened Below 1 Ω
      Locked 10 kΩ or higher

    NG

    REPLACE HOOD LOCK ASSEMBLY (SECURITY COURTESY SWITCH) Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (SECURITY COURTESY SWITCH - BODY GROUND)


    1. A01EJXCE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Security Courtesy Switch)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A7-2 - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - SECURITY COURTESY SWITCH)


    1. A01EMC3E01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Main Body ECU (Driver Side Junction Block Assembly))
      *2

      Front view of wire harness connector

      (to Security Courtesy Switch)

      Disconnect the D50 main body ECU (driver side junction block assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D50-16 (HCTY) - A7-1 Always Below 1 Ω
      D50-16 (HCTY) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here