DTC    B2761    Intrusion Sensor Internal Circuit Malfunction

for Preparation Click here


DESCRIPTION

  1. 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.
DTC Detection Condition
Trouble Area
B2761
Intrusion sensor outputs signal for sensor malfunction
  1. Map light assembly
  2. Intrusion sensor (theft warning ultrasonic sensor)
  3. Main body ECU (multiplex network body ECU)

INSPECTION PROCEDURE

1.CHECK FOR DTC

  1. Clear the DTCs (Click here).

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

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

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

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

  1. Check for DTCs (Click here).

    OK:
    DTC B2761 is not output.



NG
Go to step 2
OK

USE SIMULATION METHOD TO CHECK (Click here)  

2.REPLACE MAP LIGHT ASSEMBLY

  1. Replace the map light assembly (Click here).


NEXT


3.CHECK FOR DTC

  1. Clear the DTCs (Click here).

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

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

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

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

  1. Check for DTCs (Click here).

    OK:
    DTC B2761 is not output.



NG
Go to step 4
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).

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

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

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

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

  1. Check for DTCs (Click here).

    OK:
    DTC B2761 is not output.



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

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