THEFT DETERRENT SYSTEM > Intrusion Sensor Circuit


DESCRIPTION

The intrusion sensor (theft warning sensor) detects any moving object by using ultrasonic waves and outputs the signals to inform the multiplex network body ECU of intrusion, so that the theft deterrent system can set off the alarm.

WIRING DIAGRAM


B109015E01


INSPECTION PROCEDURE

1.CHECK THEFT WARNING SENSOR SUB-ASSEMBLY (OPERATION)

  1. Set the theft deterrent system with a window open and after 20 seconds insert your hand through the window and shake it near the sensor to check if the alarm is triggered.

    OK:
    The alarm is triggered.



NG
NO PROBLEM
OK


2.PERFORM ACTIVE TEST 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 ACTIVE TEST and then check that the horns operate.

    BODY (Multiplex network body ECU): 
    Item
    		Test Details
    		Diagnostic Note
    Intrusion Sensor Power
    		Intrusion sensor power ON/OFF
    		-

    Result: 
    Result
    		Go To
    OFF
    		Sensor power is OFF position
    ON
    		A


A


3.CHECK THEFT WARNING SENSOR SUB-ASSEMBLY (PERSONAL LIGHT ASSEMBLY)


    B110554E01

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

    Standard:
    Symbol (Tester Connection)
    		Condition
    		Specified Condition
    SIG (O2-9) - Body ground
    		Arming preparation state or armed state
    		10 to 14 V
    Disarmed state
    		Below 1 V
    SIG2 (O2-8) - Body ground
    		No moving object detected by sensor
    		10 to 14 V
    Moving object detected by sensor during arming preparation state or armed state
    		Using an oscilloscope*
    SLED (O2-7) - Body ground
    		OFF switch ON
    		Below 1 Ω
    OFF switch OFF
    		10 kΩ or higher



  1. Wave pattern (*)


    B069137E01



NG
REPLACE PERSONAL LIGHT ASSEMBLY
OK


4.CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK BODY ECU - THEFT WARNING SENSOR ASSEMBLY)


    B110555E03

  1. Disconnect the B7 ECU and O2 light connector.

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

    Resistance:
    Symbol (Tester Connection)
    		Specified Condition
    SSW1 (B7-10) - SLED (O2-7)
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE INSTRUMENT PANEL J/B ASSEMBLY