Determining the Component Causing the Fault

Determining The Component Causing The Fault





Unplug the connector:
- Glass breakage sensor, Front, B (451F)





- Turn the ignition switch to the ON position.





- Read diagnostic trouble codes from: TWICE699.





Note all diagnostic trouble codes.





- Clear diagnostic trouble codes





Arm the alarm by locking the car using the remote control.
Disarm the alarm.





- Read diagnostic trouble codes from: TWICE699.

Has diagnostic trouble code B1790 been set?

NO - Checking the Power Supply - I

YES - Checking the Power Supply - III