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) outputs signal for sensor malfunction

  • Map light assembly

  • Intrusion sensor (theft warning ultrasonic sensor)

  • Main body ECU (multiplex network body ECU)

CAUTION / NOTICE / HINT

Note:

When replacing the main body ECU (multiplex network body ECU), make sure to replace it with a new one.

PROCEDURE

  1. CHECK FOR DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > Main Body > Clear DTCs

    2. Turn the ignition switch to ON, 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

      Body Electrical > Main Body > Trouble Codes

    Result

    Proceed to

    DTC B2761 is not output

    DTC B2761 is output
    DTC B2761 is not output

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick hereClick hereClick hereClick here

    DTC B2761 is output

  2. REPLACE MAP LIGHT ASSEMBLY

    1. Temporarily replace the map light assembly with a new or normally functioning one.

      Click hereClick 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 ignition switch to ON, 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

      Body Electrical > Main Body > Trouble Codes

    Result

    Proceed to

    DTC B2761 is not output

    DTC B2761 is output
    DTC B2761 is not output

    END (MAP LIGHT ASSEMBLY WAS DEFECTIVE)

    DTC B2761 is output

  4. REPLACE INTRUSION SENSOR (THEFT WARNING ULTRASONIC SENSOR)

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

      Click hereClick here

    Result

    Proceed to

    NEXT
    NEXT

  5. CHECK DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > Main Body > Clear DTCs

    2. Turn the ignition switch to ON, 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

      Body Electrical > Main Body > Trouble Codes

    Result

    Proceed to

    DTC B2761 is not output

    DTC B2761 is output
    DTC B2761 is not output

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

    DTC B2761 is output

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    Click here