THEFT DETERRENT SYSTEM, Diagnostic DTC:B2762

DTC Code	DTC Name
B2762	Intrusion Sensor Signal 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 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	Map light assembly Intrusion sensor (theft warning ultrasonic 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


*a	from Auxiliary Battery
*b	Intrusion Sensor (Theft Warning Ultrasonic Sensor)
*c	Main Body ECU (Multiplex Network Body ECU)
*d	Map Light Assembly

PROCEDURE

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

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

Standard Resistance

Tester Connection	Condition	Specified Condition
H17-12 (ISIF) - T6-10 (IOUT)	Always	Below 1 Ω

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE MAP LIGHT ASSEMBLY
1. Replace the map light assembly Click here.
NEXT
CHECK FOR DTC
1. Clear the DTCs Click here.
2. Turn the power switch on (IG), 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.
  
  OK
  
  DTC B2762 is not output.
OK
END (MAP LIGHT ASSEMBLY WAS DEFECTIVE)

NG
REPLACE INTRUSION SENSOR (THEFT WARNING ULTRASONIC SENSOR)
1. Replace the intrusion sensor (theft warning ultrasonic sensor) Click here.
NEXT
CHECK FOR DTC
1. Clear the DTCs Click here.
2. Turn the power switch on (IG), 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.
  
  OK
  
  DTC B2762 is not output.
OK
END (INTRUSION SENSOR (THEFT WARNING ULTRASONIC SENSOR) WAS DEFECTIVE)

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