STOP AND START SYSTEM Engine Hood Courtesy Switch Circuit

DESCRIPTION

The engine stop and start ECU detects open/close of the engine hood based on a signal received from the engine hood courtesy switch that is built into the hood lock assembly.

WIRING DIAGRAM

A004875E54

PROCEDURE


  1. READ VALUE USING GTS (HOOD COURTESY SWITCH)

    Note

    Before performing this step, check that the engine hood can be opened by pulling the hood lock control cable.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Data List / Hood Courtesy Switch.

    5. Read the value displayed on the GTS when the engine hood is opened and closed.

      OK
      ON or OFF is displayed depending on whether the engine hood is open or closed.

    OK

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

    NG

  2. INSPECT HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH)


    1. Inspect the engine hood courtesy switch (hood lock assembly) Click here.


    NG

    REPLACE HOOD LOCK ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) - BODY GROUND)


    1. Disconnect the A32 engine hood courtesy switch (hood lock assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A32-1 - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY))


    1. Disconnect the A32 engine hood courtesy switch (hood lock assembly) connector.

    2. Disconnect the A92 engine stop and start ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A92-7 (BNT1) - A32-2 Always Below 1 Ω
      A92-7 (BNT1) or A32-2 - Body ground Always 10 kΩ or higher

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR