THEFT DETERRENT SYSTEM, Diagnostic DTC:B2764

DTC Code DTC Name
B2764 Short to GND in Intrusion Sensor Signal Circuit

DESCRIPTION


DTC No. DTC Detection Condition Trouble Area
B2764

After normal/trouble signal is output from intrusion sensor as result of self-diagnosis, following malfunctions are detected:


  1. ISIF line circuit is shorted to ground

  2. Reception of signals other than normal/trouble signal

  • Map light assembly

  • Intrusion sensor (theft warning ultrasonic sensor)

  • Main body ECU (multiplex network body ECU)

  • Wire harness or connector

WIRING DIAGRAM

Refer to DTC B2762 Click here.

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - MAIN BODY ECU)


    1. Disconnect the H17 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the T6 map light assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H17-12 (ISIF) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. REPLACE MAP LIGHT ASSEMBLY


    1. Replace map light assembly Click here.


    NEXT

  3. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Turn the power 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 B2764 is not output.

    NG

    REPLACE INTRUSION SENSOR (THEFT WARNING ULTRASONIC SENSOR) Click here

    OK

    END (MAP LIGHT ASSEMBLY WAS DEFECTIVE)

  4. REPLACE INTRUSION SENSOR (THEFT WARNING ULTRASONIC SENSOR)


    1. Replace the intrusion sensor (theft warning ultrasonic sensor) Click here.


    NEXT

  5. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Turn the power 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 B2764 is not output.

    NG

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

    OK

    END (INTRUSION SENSOR (THEFT WARNING ULTRASONIC SENSOR) WAS DEFECTIVE)