THEFT DETERRENT SYSTEM Tilt Sensor Circuit

DESCRIPTION


WIRING DIAGRAM

A01WR5XE28
*a from Battery
*b J/B-B NO.2
*c Theft Warning Tilt Sensor (Yaw Rate Sensor)
*d Main Body ECU (Multiplex Network Body ECU)

CAUTION / NOTICE / HINT

Note


  • If the main body ECU (multiplex network body ECU) is replaced, refer to the Service Bulletin.

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  • 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.

PROCEDURE


  1. READ VALUE USING GTS (TILT SENSOR)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

    5. 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

      		 -

      Note

      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).

      Tech Tips

      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).

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

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


    1. Using an oscilloscope, check the waveform.

      A01WW0DE02
      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)

      Tech Tips


      • 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).

      • 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 (MULTIPLEX NETWORK 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.

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

    3. 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

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR