THEFT DETERRENT SYSTEM, Diagnostic DTC:B2761

DTC Code DTC Name
B2761 Intrusion Sensor Internal Circuit Malfunction

DESCRIPTION

The intrusion sensor (theft warning ultrasonic sensor) conducts self-diagnosis immediately after power is supplied to the sensor (when the theft deterrent system is set).

If a problem is detected in the signals transmitted and received by the intrusion sensor (theft warning ultrasonic sensor), or if the transmission or reception circuits malfunction, the intrusion sensor (theft warning ultrasonic sensor) transmits a signal to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) then stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2761 Intrusion Sensor Internal Circuit Malfunction Intrusion sensor (theft warning ultrasonic sensor) sensor malfunction signal output

  • Map light assembly

  • Intrusion sensor (Theft warning ultrasonic sensor)

  • Main body ECU (Multiplex network body ECU)

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Main Body > Clear DTCs

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

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

      Click here

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

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

      Click here

    6. Check for DTCs.

      Click here


      Body Electrical > Main Body > Trouble Codes
      OK
      DTC B2761 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. REPLACE MAP LIGHT ASSEMBLY


    1. Temporarily replace the map light assembly with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Main Body > Clear DTCs

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

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

      Click here

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

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

      Click here

    6. Check for DTCs.

      Click here


      Body Electrical > Main Body > Trouble Codes
      OK
      DTC B2761 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (MAP LIGHT ASSEMBLY WAS DEFECTIVE)

    NG

  4. REPLACE INTRUSION SENSOR (THEFT WARNING ULTRASONIC SENSOR)


    1. Temporarily replace the intrusion sensor (theft warning ultrasonic sensor) with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Main Body > Clear DTCs

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

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

      Click here

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

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

      Click here

    6. Check for DTCs.

      Click here


      Body Electrical > Main Body > Trouble Codes
      OK
      DTC B2761 is not output.
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

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