THEFT DETERRENT SYSTEM, Diagnostic DTC:B2768

DTC Code DTC Name
B2768 Tilt Sensor Internal Circuit Malfunction

DESCRIPTION

This DTC is stored when one of the following occurs: 1) a yaw rate sensor assembly power supply malfunction; 2) a yaw rate sensor assembly open malfunction; or 3) an EEPROM malfunction.

DTC Code DTC Detection Condition Trouble Area
B2768

One of the following conditions is met:


  • A yaw rate sensor assembly power supply malfunction.

  • A yaw rate sensor assembly open malfunction.

  • An EEPROM malfunction.


  • Yaw rate sensor assembly

  • Main body ECU

  • Harness or connector

WIRING DIAGRAM

A009APEE01

INSPECTION PROCEDURE

Note


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

  • When replacing the yaw rate sensor assembly, perform zero point calibration.

    Vehicle stability control system (for Hydraulic Brake Booster) Click here.

    Vehicle stability control system (for Vacuum Brake Booster) Click here.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (YAW RATE SENSOR - BATTERY AND BODY GROUND)


    1. A0095N0E01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Yaw Rate Sensor Assembly)

      Disconnect the G52 sensor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G52-1 (GND) - Body ground Always Below 1 Ω
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G52-6 (+B) - Body ground Always 11 to 14 V
      G52-4 (IG) - Body ground Ignition switch ON 11 to 14 V

    NG
    OK
  2. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Turn the ignition switch to ON, and then off.

    3. Set the theft deterrent system to the armed state Click here.

    4. Check that the security indicator light changes from illuminated to flashing.

    5. Set the theft deterrent system to the disarmed state Click here.

    6. Check for DTCs Click here.

      OK
      DTC B2768 is not output.

    NG
    OK
  3. REPLACE YAW RATE SENSOR ASSEMBLY


    1. Temporarily replace the yaw rate sensor assembly with a new or normally functioning one Click here.


    NEXT
  4. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Turn the ignition switch to ON, and then off.

    3. Set the theft deterrent system to the armed state Click here.

    4. Check that the security indicator light changes from illuminated to flashing.

    5. Set the theft deterrent system to the disarmed state Click here.

    6. Check for DTCs Click here.

      OK
      DTC B2768 is not output.

    NG
    OK