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DTC    B2762    Intrusion Sensor Signal Circuit Malfunction

for Preparation Click here


DESCRIPTION

  1. The theft warning radar sensor (intrusion sensor) conducts self-diagnosis immediately after power is supplied to the sensor (when the theft deterrent system is set).
    If a malfunction is detected in the ISIF line, the main body ECU (multiplex network body ECU) stores this DTC.

DTC No.
DTC Detection Condition
Trouble Area
B2762
After normal/trouble signal is output from intrusion sensor as result of self-diagnosis, following malfunctions are detected:
  1. ISIF line circuit is open
  2. Reception of signals other than normal/trouble signal
  1. Theft warning radar sensor (intrusion sensor)
  2. Main body ECU (multiplex network body ECU)
  3. Wire harness or connector

WIRING DIAGRAM


B229044E01


INSPECTION PROCEDURE

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


  1. Disconnect the L8 main body ECU (multiplex network body ECU) and U3*4 or U13*5 map light assembly connectors.


    B229083E01

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L8-12 (ISIF) - U3-6 (IOUT)*4
    L8-12 (ISIF) - U13-8 (IOUT)*5
    		Always
    		Below 1 Ω
    L8-12 (ISIF) - Body ground
    		Always
    		10 kΩ or higher

    1. *4: w/o Sliding Roof System
    2. *5: w/ Sliding Roof System

    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Main Body ECU (Multiplex Network Body ECU))
    		*2
    		Front view of wire harness connector
    (to Map Light Assembly (Intrusion Sensor))
    *3
    		Front view of wire harness connector
    (to Map Light Assembly (Intrusion Sensor))
    		*4
    		w/o Sliding Roof System
    *5
    		w/ Sliding Roof System
    		-
    		-



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.REPLACE THEFT WARNING RADAR SENSOR (INTRUSION SENSOR)

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


NEXT


3.CHECK FOR DTC

  1. Check if DTC B2762 is not output (Click here).

    OK:
    DTC B2762 is not output.



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

END (THEFT WARNING RADAR SENSOR (INTRUSION SENSOR) WAS FAULTY)