STOP AND START SYSTEM Engine Hood Courtesy Switch Circuit

DTC Code DTC Name
Engine Hood Courtesy Switch Circuit

DESCRIPTION

The engine stop and start ECU detects whether the engine hood is open or closed based on a signal received from the engine hood courtesy switch built into the hood lock assembly.

  • The engine stop and start ECU prohibits starting of the engine by stop and start control and stalls the engine if the clutch pedal is depressed with the engine hood open while the engine is stopped by stop and start control.

  • The engine stop and start ECU permits starting of the engine by stop and start control if the engine hood is opened with the clutch pedal depressed while the engine is stopped by stop and start control.

WIRING DIAGRAM

A287084E21

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. According to the display on the GTS, read the Data List.

      Powertrain > Stop and Start > Data List

      Tester Display

      Hood Courtesy Switch

      OK

      Tester Display

      Condition

      Normal Condition

      Hood Courtesy Switch

      Engine hood closed

      ON

      Engine hood open

      OFF

    Result

    Result

    Proceed to

    NG

    A

    OK

    B
    B

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click hereClick hereClick here

    A

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

    1. Remove the engine hood courtesy switch (hood lock assembly).

      Click here

      A325916C01

      *1

      Open

      *2

      Lock

      *a

      Component without harness connected

      (Engine Hood Courtesy Switch (Hood Lock Assembly))

      -

      -

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      1 (E) - 2 (+)

      Open

      Below 1 Ω

      1 (E) - 2 (+)

      Locked

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    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 A13 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

      A13-1 (E) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    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 A24 engine stop and start ECU connector.

    2. Disconnect the A13 engine hood courtesy switch (hood lock assembly) connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A24-7 (BNT1) - A13-2 (+)

      Always

      Below 1 Ω

      A24-7 (BNT1) - Body ground

      Always

      10 kΩ or higher

      A13-2 (+) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click hereClick hereClick here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR