Operation CHARM: Car repair manuals for everyone.

Key In Ignition

The key-in-ignition alarm sounds at a rate of 150 tones per minute for 3 seconds, then switch to 18 tones per minute when the following conditions are true:
^ The ignition switch is off.
^ The driver door is open.
^ The key-in-ignition input is active.

The alarm deactivates when any one of the above conditions changes.