THEFT DETERRENT SYSTEM, Diagnostic DTC:B2768

DTC Code DTC Name
B2768 Tilt Sensor Internal Circuit Malfunction

DESCRIPTION


DTC Code DTC Detection Condition Trouble Area
B2768

If one of the following is detected:


  • Tilt sensor (yaw rate sensor) power supply malfunction

  • Tilt sensor (yaw rate sensor) open malfunction

  • EEPROM malfunction

  • Tilt sensor (yaw rate sensor)

  • Main body ECU (multiplex network body ECU)

INSPECTION PROCEDURE

Note


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

  • When replacing the tilt sensor (yaw rate sensor), perform zero point calibration Click here.

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

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Turn the engine switch on (IG), then off.

    3. Set the theft deterrent system to "ARMED STATE".

    4. Check that the security indicator changes from illuminated to blinking.

    5. Set the theft deterrent system to "DISARMED STATE".

    6. Check for DTCs Click here.

      OK
      DTC B2768 is not output.

    NG

    REPLACE TILT SENSOR (YAW RATE SENSOR) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. REPLACE TILT SENSOR (YAW RATE SENSOR)


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


    NEXT

  3. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Turn the engine switch on (IG), then off.

    3. Set the theft deterrent system to "ARMED STATE".

    4. Check that the security indicator changes from illuminated to blinking.

    5. Set the theft deterrent system to "DISARMED STATE".

    6. Check for DTCs Click here.

      OK
      DTC B2768 is not output.

    NG

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

    OK

    END (TILT SENSOR [YAW RATE SENSOR] WAS DEFECTIVE)