THEFT DETERRENT SYSTEM > Engine Hood Courtesy Switch Circuit


DESCRIPTION

  1. The engine hood courtesy switch is built into the hood lock. This switch turns on when the engine hood is opened and turns off when the engine hood is closed.

WIRING DIAGRAM


B160791E01


INSPECTION PROCEDURE

1.READ VALUE USING TECHSTREAM (ENGINE HOOD COURTESY SWITCH)

  1. Using the Techstream, read the Data List.

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

    OK:
    ON (engine hood is open) appears on screen.


NG
Go to step 2
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)  

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

B165961E01

  1. Remove the hood lock (Click here).

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		UNLOCK position
    		Below 1 Ω
    LOCK position
    		10 kΩ or higher


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


3.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ENGINE HOOD COURTESY SWITCH AND BODY GROUND)
B160792E01

  1. Disconnect the J4 main body ECU connector.

  1. Disconnect the A29 engine hood courtesy switch connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    J4-16 (HCTY) - A29-1
    		Always
    		Below 1 Ω
    A29-2 - Body ground
    J4-16 (HCTY) or A29-1 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU