MS850 Owner’s Manual - Page 13
You can use this chart to quickly identify and interpret your system’s chirp indications and LED
flashes.
Reference Chart
1 chirp arming normal arming
1 + 4 chirps arming door, hood, or trunk is open
Output When Status
2 quick chirps arming Valet Mode is on
LED double flashes Valet Mode Starter Defeat Activated
2 chirps disarming normal disarming
1 long disarming Tamper Alert - system was triggered
no chirps after Tamper Alert ignition
1 chirp after Tamper Alert door
2 chirps after Tamper Alert shock sensor
3 chirps after Tamper Alert hood or trunk
no LED flashes after Tamper Alert ignition
1 LED flash after Tamper Alert door
2 LED flashes after Tamper Alert shock sensor
3 LED flashes after Tamper Alert hood or trunk
1 chirp while Armed Warn Away
4 chirps with ignition key on Sensor Test mode on
1 chirp in Sensor Test mode impact detected
Double chirps 1 minute after disarming Automatic Rearming
(for 10 seconds)
LED flashing quickly ignition key off Passive Arming sequence started
Two chirps ignition key off Full Time System Diagnostics
1 LED flash after Full Time Sys. Diag. door
2 LED flashes after Full Time Sys. Diag. shock sensor
3 LED flashes after Full Time Sys. Diag. hood or trunk
Double chirps while Armed System Triggered
(Passive Arming Entry Delay Warning)
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