Theft Deterrent System (W/ Entry And Start System) Tilt Sensor Circuit

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Theft Deterrent Keyless Entry. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING GTS (TILT SENSOR)

CHECK THEFT WARNING TILT SENSOR (YAW RATE SENSOR) (CSIF)

CHECK HARNESS AND CONNECTOR (THEFT WARNING TILT SENSOR (YAW RATE SENSOR) -MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)

THEFT DETERRENT SYSTEM (w/ Entry and Start System) - Tilt Sensor Circuit


DESCRIPTION

  1. The main body ECU (multiplex network body ECU) operates the theft warning tilt sensor (yaw rate sensor) via the CSIF communication line. The theft warning tilt sensor (yaw rate sensor) sends information regarding changes in the vehicle tilt angle to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) checks whether the vehicle body is being tilted without authorization.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Theft Deterrent System (W/ Entry And Start System) Tilt Sensor Circuit


INSPECTION PROCEDURE

NOTICE:
  1. If the main body ECU (multiplex network body ECU) is replaced, refer to the Service Bulletin.
  2. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
  3. w/ Door Control Battery:
    As the door control battery is installed between the vehicle battery and main body ECU (multiplex network body ECU), first perform the inspections in On-Vehicle Inspection to confirm that there are no malfunctions in the power source circuit for the main body ECU (multiplex network body ECU) before performing this troubleshooting procedure (Click here).
1.READ VALUE USING GTS (TILT SENSOR)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

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

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

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Tilt Sensor
    		Status of the tilt sensor detection / ON or OFF
    		ON: Theft warning tilt sensor detected
    OFF: Theft warning tilt sensor not detected
    		-
    NOTICE:
    After setting the theft deterrent system, wait 30 seconds or more (until the vehicle is in the armed state), tilt the vehicle and confirm the Data List (jack up the vehicle so that the tires are in the air).
    HINT:
    When performing the above inspection, have the electrical key transmitter in the vehicle exterior detection area to perform certification (this prevents the alarm from sounding).
    OK:
    The display on the GTS changes according to the detection condition of the theft warning tilt sensor (yaw rate sensor).


NG
Go to step 2
OK

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

2.CHECK THEFT WARNING TILT SENSOR (YAW RATE SENSOR) (CSIF)


  1. Using an oscilloscope, check the waveform.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Theft Deterrent System (W/ Entry And Start System) Tilt Sensor Circuit


    Text in Illustration
    *a
    		Component with harness connected
    (Main body ECU [multiplex network body ECU])
    		*b
    		CSIF Initial Signal
    *c
    		CSIF Initial Response
    		*d
    		Approximately 1.0 seconds
    *e
    		Initial Diagnosis
    		*f
    		Approximately 1.0 to 1.6 seconds
    *g
    		Approximately 0.05 seconds
    		*h
    		Approximately 5.5 seconds
    *i
    		Disarmed State
    		*j
    		Arming Preparation State
    Measurement Condition
    Tester Connection
    		Content
    Tester Connection
    		E117-6 (GCS) - Body ground
    Tool Setting
    		2 V/DIV., 100 ms./DIV.
    Condition
    		Theft deterrent system is set (system changes from disarmed state to arming preparation state)
    HINT:
    1. If the theft warning tilt sensor (yaw rate sensor) is normal, an initial response is output in response to the HI input from the main body ECU (multiplex network body ECU).
    2. If the waveform output remains LO, there may be a problem with the main body ECU (multiplex network body ECU), as there is no input from the main body ECU (multiplex network body ECU).
    OK:
    The waveform displays properly (HI is 6.5 V or higher and LO is below 1 V).
    Result
    Result
    		Proceed to
    OK
    		A
    NG (for LHD)
    		B
    NG (for RHD)
    		C


B
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)

C
REPLACE MAIN BODY ECU (Click here)
A


3.CHECK HARNESS AND CONNECTOR (THEFT WARNING TILT SENSOR (YAW RATE SENSOR) -MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)

  1. Disconnect the E50 theft warning tilt sensor (yaw rate sensor) connector.

  1. Disconnect the E117 main body ECU (multiplex network body ECU) connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E50-5 (CSIF) - E117-6 (GCS)
    		Always
    		Below 1 Ω
    E50-1 (GND) - Body ground
    		Always
    		Below 1 Ω
    E50-5 (CSIF) - Body ground
    		Always
    		10 kΩ or higher
    E117-6 (GCS) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE THEFT WARNING TILT SENSOR (YAW RATE SENSOR) (Click here)