Lexus IS250 IS220d GSE20 ALE20 - THEFT DETERRENT
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU RH - PERSONAL LIGHT ASSEMBLY)
CHECK OPERATION OF INTRUSION SENSOR
DTC B2762 Intrusion Sensor Signal Circuit Malfunction
DESCRIPTION
The 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 IOUT - ISIF line, the main body ECU RH outputs this DTC.
If a malfunction is detected in the IOUT - ISIF line, the main body ECU RH outputs 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: IOUT - ISIF line circuit is open Reception of signals other than normal/trouble signal | Intrusion sensor Wire harness Main body ECU RH (Cowl side J/B RH) |
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU RH - PERSONAL LIGHT ASSEMBLY) |
Disconnect the J75 ECU connector and R5 light connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Symbol (Tester Connection) Specified Condition ISIF (J75-13) - IOUT (R5-25) Below 1 Ω ISIF (J75-13) - Body ground 10 kΩ or higher
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| OK | |
| 2.CHECK OPERATION OF INTRUSION SENSOR |
Temporarily replace the personal light assembly with a new or normally functioning sensor.
Check if the DTC B2762 is not output.
- OK:
- DTC B2762 is not output.
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| OK | ||
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LEXUS IS250, IS220d / GSE20 ALE20