THEFT DETERRENT SYSTEM Engine Hood Courtesy Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

A0162KYE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC (MULTIPLEX COMMUNICATION SYSTEM)

    Tech Tips

    The front controller sends an engine hood open/close signal to main body ECU RH through the multiplex communication.


    1. Clear the DTCs Click here.

    2. Check for DTCs again.

      Result
      Result Proceed to
      Multiplex communication DTC is not output OK
      Multiplex communication DTC is output NG

    NG

    GO TO MULTIPLEX COMMUNICATION SYSTEM Click here

    OK

  2. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester on.

    4. Select the item below in the Data List and read the display on the tester.

      Body No. 5
      Tester Display Measurement Item/Range Test Detail Diagnostic Note
      Hood Courtesy SW Engine hood courtesy switch signal/ ON or OFF

      ON: Engine hood is OPEN

      OFF: Engine hood is CLOSED

      		 -
      OK
      The indicator on the tester switches between ON and OFF in accordance with the engine hood courtesy switch status.

    NG

    INSPECT ENGINE HOOD COURTESY SWITCH Click here

    OK

    PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE Click here

  3. INSPECT ENGINE HOOD COURTESY SWITCH


    1. A01629XE08

      Remove the engine hood courtesy switch from the hood lock Click here.

    2. Disconnect the multiplex network body ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Free (OFF) 10 kΩ or higher
      1 - 2 Pushed (ON) Below 1 Ω

    NG

    REPLACE HOOD LOCK ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK BODY ECU - ENGINE HOOD COURTESY SWITCH)


    1. A0160M2E02

      Disconnect the 2G multiplex network body ECU connector and B8 engine hood courtesy switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2G-3 - B8-2 Always Below 1 Ω
      2G-3 or B8-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH - BODY GROUND)


    1. A015ZY1E05

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B8-1 - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MULTIPLEX NETWORK BODY ECU