Operation CHARM: Car repair manuals for everyone.

With VSS






- The ignition switch is connected to the control module (pin 9). When the key is removed from the ignition switch the electronic control module senses this and immobilizes the car.
- The ignition switch is also connected to the control module (pin 10) which will then sense the voltage level (+12 V) if the ignition switch is turned to the "ON position (+15 circuit).

If the car is immobilized it cannot be started until the engine management system has identified the correct code from the remote control unit (otherwise the engine management system will prevent the engine from being started). An alarm will be set off if the anti-theft alarm is armed, that is to say an attempt to start the car will trigger both an alarm and "immobilizing".


Important:
- If the ignition is in the "ON" position (+15), the anti-theft alarm cannot be armed.
- If the ignition is turned to the "ON" position (+15) during the alarm delay period, the anti-theft alarm is automatically disarmed.