THEFT DETERRENT SYSTEM, Diagnostic DTC:B2762, B2764

DTC Code DTC Name
B2762 Intrusion Sensor Signal Circuit Malfunction
B2764 Short to GND in Intrusion Sensor Signal Circuit

DESCRIPTION


DTC Code DTC Detection Condition Trouble Area
B2762

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


  1. The IOUT line circuit is open.

  2. Signals other than a normal/trouble signal are received.

  • Map light assembly (Intrusion sensor)

  • Main body ECU (Instrument panel junction block assembly)

  • Harness or connector
B2764

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

Terminal IOUT of the intrusion sensor has not received a signal for 5 seconds or more.

  • Map light assembly (Intrusion sensor)

  • Main body ECU (Instrument panel junction block assembly)

  • Harness or connector

WIRING DIAGRAM

A002QOVE04
*a Intrusion Sensor
*b Map Light Assembly
*c Main Body ECU (Instrument Panel Junction Block Assembly)

PROCEDURE


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


    1. A002OJKE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Map Light Assembly)
      *2

      Front view of wire harness connector

      (to Main Body ECU [Instrument Panel Junction Block Assembly])

      Disconnect the Q10 light connector.

    2. Disconnect the H80 ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q10-5 (IOUT) - H80-7 (ISIF) Always Below 1 Ω
      Q10-5 (IOUT) or H80-7 (ISIF) - Body ground Always 10 kΩ or higher
      Q10-2 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK MAP LIGHT ASSEMBLY (INTRUSION SENSOR)


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

    2. Check if DTC B2762 or B2764 is output.

      OK
      DTC B2762 or B2764 is not output.

    OK

    END (MAP LIGHT ASSEMBLY [INTRUSION SENSOR] IS FAULTY)

    NG

    REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)