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 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.

  • 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

A287084E57

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

      GTS Display

      Condition

      Normal Condition

      Hood Courtesy Switch

      Engine hood is closed

      ON

      Engine hood is open

      OFF

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    (Click here)

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

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

    REPLACE HOOD LOCK ASSEMBLY

    (Click here)

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

    1. Disconnect the A44 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

      A44-1 (E) - Body ground

      Always

      Below 1 Ω

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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

    1. Disconnect the A74 engine stop and start ECU connector.

    2. Disconnect the A44 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

      A74-7 (BNT1) - A44-2 (+)

      Always

      Below 1 Ω

      A74-7 (BNT1) - Body ground

      Always

      10 kΩ or higher

      A44-2 (+) - Body ground

      Always

      10 kΩ or higher

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR