THEFT DETERRENT SYSTEM (for Hatchback) > Engine Hood Courtesy Switch Circuit


DESCRIPTION

The engine hood courtesy switch (hood lock assembly) 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


B291383E01


INSPECTION PROCEDURE

1.READ VALUE USING TECHSTREAM
  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

  1. Enter the following menus: Body Electrical / Main Body / Data List.

  1. According to the display on the Techstream, read the Data List.

    Main Body 
    Tester Display
    Measurement Item/Range
    Normal Condition
    Diagnostic Note
    Hood Courtesy Switch
    Engine hood courtesy switch / OFF or ON
    OFF: Engine hood open
    ON: Engine hood closed
    -

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


NG
Go to step 2
OK

REPLACE MAIN BODY ECU (Click here)  

2.CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) - BODY GROUND)
  1. Disconnect the A63 engine hood courtesy switch (hood lock assembly) connector.

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

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    A63-1 (E) - Body ground
    Always
    Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) - MAIN BODY ECU)
  1. Disconnect the D144 main body ECU connector.

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

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    A63-2 (+) - D144-5 (HCTY)
    Always
    Below 1 Ω
    A63-2 (+) - Body ground
    Always
    10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.INSPECT ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY)
  1. Inspect the engine hood courtesy switch (hood lock assembly) (Click here).



NG
REPLACE ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) (Click here)
OK

REPLACE MAIN BODY ECU (Click here)