Firstech, LLC. CM4200 - Manual (Page 64)

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The vehicle will remote start when disarmed, but not when armed.
Most likely, the starter kill relay was installed backwards. Check to make sure the
yellow/black wire is going to the ignition side of the wire, and that the yellow
wire is going to the engine side. If installed backwards, when armed, you will be
applying 12v+ to the key cylinder, and not to the rest of the vehicle.
Do I have to hook up both 12v+ wires?
Yes. Power for the various functions of the system is divided between these two
wires.
How do I upgrade my current install to a higher end model?
Simply unplug the old antenna, plug the new antenna in, stick it to the windshield,
and then program the new remote.
The vehicle starts then shuts down 3 times in a row.
This usually means that the CompuStar is not satisfied with the tach or alternator
signal it is sensing. One of the main causes of this is the use of T-taps, or Scotch-
Locks. These devices do not make good connections. If you have soldered onto
these wires and still have this problem, you can try to find a different source for
the signal. Please see page 7 for details on how these wires should test.
The vehicle will lock and unlock, but will not remote start or flash the parking
lights.
The system is in valet mode. Please see the user’s guide for the remote you are
using, for the button configuration to get the system out of valet mode.
Whenever I try to arm the vehicle, it chirps the siren 3 times and will not arm.
The most likely cause for this would be that the system thinks that either the trunk
and/or hood is/are open. Please verify that the trunk and hood are closed and that
the wires for these inputs have not been grounded anywhere.
Do the door locks flip-flop in polarity?
No. We had this configuration at one point and experienced problems with
improper installations that caused damage to the lock outputs. We do provide a
Door Relay Pack that simplifies various door lock integrations.
Diagnosing Remote Start Problems.
If there is a problem auto-starting the vehicle, you will hear three chirps or see
three parking light flashes when you attempt to auto-start it. Wait for 2 seconds
and the cause for the error will be indicated by the number of times the parking
lights flash. Please see page 11 for the error list.