THEFT DETERRENT SYSTEM, Diagnostic DTC:B2762

DTC Code	DTC Name
B2762	Intrusion Sensor Signal Circuit Malfunction

DESCRIPTION

The intrusion sensor (theft warning radar 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: ISIF line circuit is open Reception of signals other than normal/trouble signal	Intrusion sensor (theft warning radar sensor) Main body ECU (multiplex network body ECU) Wire harness or connector

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:

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

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

Disconnect the E121 main body ECU (multiplex network body ECU) and O8 map light assembly connectors.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
E121-12 (ISIF) - O8-4 (IOUT)	Always	Below 1 Ω
E121-12 (ISIF) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE INTRUSION SENSOR (THEFT WARNING RADAR SENSOR)
1. Replace the intrusion sensor (theft warning radar sensor) Click here.
NEXT
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)

OK

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