THEFT DETERRENT SYSTEM > Engine Hood Courtesy Switch Circuit


DESCRIPTION

The engine hood courtesy switch is installed together with the hood lock. This switch turns on when the engine hood is opened and turns off when the engine hood is closed.

WIRING DIAGRAM


B109006E02


INSPECTION PROCEDURE

1.READ DATA LIST BY INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch ON.

  1. Turn the intelligent tester main switch on.

  1. Select the item below in the DATA LIST and read the display on the tester.

    BODY (Multiplex network body ECU): 
    Item
    		Test Details
    		Diagnostic Note
    Hood Courtesy SW
    		Engine hood courtesy switch signal ON/OFF
    		-

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



NG
Go to step 2
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

2.INSPECT ENGINE HOOD COURTESY SWITCH


    B110541E01

  1. Remove the courtesy switch from the hood lock.

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

    Resistance:
    Tester Connection
    		Switch Position
    		Specified Condition
    1 - 2
    		Pushed (OFF)
    		10 kΩ higher
    Free (ON)
    		Below 1 Ω



NG
REPLACE ENGINE HOOD COURTESY SWITCH
OK


3.CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK BODY ECU - ENGINE HOOD COURTESY SWITCH)


    B110523E02

  1. Disconnect the B4 ECU and E3 switch connectors.

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

    Resistance:
    Symbol (Tester Connection)
    		Specified Condition
    HCTY (B4-10) - (E3-2)
    		Below 1 Ω
    (B4-10) or (E3-2) - Body ground
    		10 kΩ higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH - BODY GROUND)


    B110524E01

  1. Disconnect the E3 switch connector.

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

    Resistance:
    Tester Connection
    		Specified Condition
    E3-1 - Body ground
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE INSTRUMENT PANEL J/B ASSEMBLY