Compustar alarm problems

You have to toggle the ignition ON-OFF 5 times within 3 seconds for programming. Also, make sure that you have the GREEN wire from the CN1 harness attached to the PINK wire at the ignition.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Velocity Motors wrote:

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You have to toggle the ignition ON-OFF 5 times within 3 seconds for programming. Also, make sure that you have the GREEN wire from the CN1 harness attached to the PINK wire at the ignition.

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I tested the voltage at the brain and its getting the signal from the ignition.

I tried toggling the ignition on/off 5 times and then putting the battery into the remote. The remote just searches. After 30 seconds it beeps but doesnt link up. Does it have to be under 3 seconds? I think the fastest I did it was probably 5 seconds (ignition wasnt the easiest to turn fast).

I always place the battery in the remote prior to programming and it's always worked for me. You don't necessarily have to toggle the ignition swithc to the OFF position on all vehicles rather you can toggle between the ON position and the ACC position.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

The alarm is installed in a 95 GMC Sierra.

When I remote start the truck with the alarm armed it will not turn on. The ignition/accessories will get power but the starter does not. I can hear the fuel pump too.

When I remote start the truck with the alarm disarmed it will remote start.

Why is this?

Also, I noticed that tapping the pager on the window does not send a signal to the remote. Ideas?

Thanks for your help.

To the first question, it sounds as if you may have the starter kill input and ouput backwards. Make sure that the remote start output is on the out side of the cut starter wire, not the key side of the cut starter wire.

As far as your second question goes, I am not sure what tapping the remote on the window is supposed to do.

Which Compustar model is it? Is the remote pager turned on? The phone handset icon should be visible in the LCD display's cars windshield if it is.

twelvevoltz on some 2 way pagers compustar has a "knock sensor" it sticks to the windshield so people can knock on you windshield and it pages the remote.

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I will check the wires today but if the starter wires were backwards wouldnt the remote start not work at all?

No as when the alarm is armed the relay acts as a open circuit for starter when disarmed its a closed circuit allowing it to start.

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I installed a compustar 2wss-as in a friends truck about a month ago and recently the the alarm just started going off. When I put the key in the on position the alarm stops going off. When I try to start the truck it just grinds the starter. When the key is not in the on position the alarm just continues to go off. I pulled the main power wire fuse until I could get around to fixing it. This was 2 weeks ago. Apparently this morning it started going crazy again...this is kind of random since the main power fuse is taken out. I guess its getting power from the secondary power wire.

Anyone have any ideas whats going on here? Is there a way to reset the brain?

"Apparently this morning it started going crazy again...this is kind of random since the main power fuse is taken out."

With the main fuse pull out, I don't see how the alarm unit will still function unless you have a shorted wire somewhere.

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Be careful whose advice you buy, but be patient with those who supply it.

Year make and model of vehicle needs to be posted....

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thepencil wrote:

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"Apparently this morning it started going crazy again...this is kind of random since the main power fuse is taken out."

With the main fuse pull out, I don't see how the alarm unit will still function unless you have a shorted wire somewhere.

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I agree..the owner of the vehicle said it went off. Now he actually says the "lights flashed" Anyways, I just went ahead and totally disconnected the brain.

Its a 95 gmc sierra.

I'm working on a 95 gmc sierra. Either the brain is defective or I wired something wrong. Here is the problem:

When I push a button on the alarm remote, the alarm goes into panic mode unless i turn the key to the "on" position (then it turns off panic mode). With it in the "on" position, I can use the buttons on the remote (most of the time). I also noticed that with the key out the LED is solid blue.

Any Ideas whats going on here?

Wire/Function	CM3000	Colour	Location/Description	Polarity
12 VOLTS	RED (CN1)	Red	Ignition harness	+
IGNITION	GREEN (CN1)	Pink	Ignition harness	+
IGNITION 2	GREEN (CN2) + Relay	Pink/white or White	Ignition harness	+
ACCESSORY	WHITE (CN1)	Orange	Ignition harness	+
STARTER	YELLOW (CN1)	Purple or Yellow	Ignition harness	+
KEY SENSE		Lt.green	Ignition harness	-
TACH SIGNAL	YELLOW/BLACK (CN3)	White	At coil on engine	AC
LOCK	BLUE/BLACK (CN4)	Lt.blue	In driver's side door boot	Rev Pol
UNLOCK	BLUE (CN4)	White or Black	In driver's side door boot	Rev Pol
DOORPIN	RED / WHITE(-) or RED(+) (CN3)	Purple	At light switch harness	-
BRAKESWITCH	LT.BLUE/WHITE (CN3)	White	At switch above brake pedal	+
PARKLIGHTS	GREEN / WHITE (+) (CN1) or (-) (CN2)	Brown	At light switch harness	+
HORN	WHITE (-) (CN5)	Black	At steering column harness	-
DRIVER WINDOW UP		Dk.blue	At switch in driver's door	REV POL
DRIVER WINDOW DOWN		Brown	At switch in driver's door	REV POL
PASSENGER WINDOW UP		Blue or Blue/white	At switch in driver's door	REV POL
PASSENGER WINDOW DOWN		Tan	At switch in driver's door	REV POL
HEADLIGHTS		Yellow	At light switch harness	+
REVERSE LIGHTS		Lt.green	At steering column harness	+
DIMMER		Lt.green or Gray	At dimmer switch harness
VSS WIRE		Brown	At ECM under right side of dashboard
DATABUS INTERFACE		Pin-2(top row from left)	Diagnostic plug below dash	DATA

Check your connections...something is NOT rite..!

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Few Questions:

1) Does the starter output wire belong on the starter or key side? I have this on the starter side.

2) Everything worked correctly for a few weeks before this issue started. Could a relay just be bad?

3) When I pull out all of the fuses to the alarm I cannot start the truck. Is this normal?

grtn316 wrote:

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2) Everything worked correctly for a few weeks before this issue started. Could a relay just be bad?

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To add to this, everything worked correctly except that the truck had to be disarmed to remote start it. If it was armed, it would not remote start. The fuel pump and such would kick on but not the starter. At this time the starter output wire was on the ignition side.

Totally forgot about this thread. Sorry Admins ;)

Anyways, I'm guessing the starter relay is backwards which should solve the starter problem but what about alarm going off when getting any signal from the remote without the key in? I mentioned above this was not a problem till recently. The only problem was the remote start. So could wires still be backwards?

Alarm LED is solid blue with key out. Alarm LED is off with key in the "on" position. I now have the siren disconnected. With the alarm enabled and the key out it the LED shows solid blue and flashes even brighter. If the key is in and the alarm is armed it will flash between blue and clear.

I also noticed that the parking lights will stay on when i arm the alarm unless i put the key in.

The wires look good to me. What would a grounding issue look like?

ttt

Do you understand the tech sheet I sent you...? It shows the wire from the brain as well. It tells you WHAT to hook to WHAT, on your exact vehicle....

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Yes I understood it. I went over all the wires again using your sheet. Looked Good.

I also disconnected all connectors from the brain except the main, outputs (next to the main), led, and the 2 pager system connectors. Nothing.

This makes me think the brain is malfunctioning since it worked correctly for a few weeks and then started acting like this (except the remote start issue). I mean, what would cause the LED to stay solid all the time?

I reviewed the starter wires and they look good too. Hopefully, moving the starter status wire to the output side of the relay will solve that problem.

grtn316 wrote:

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I mean, what would cause the LED to stay solid all the time?

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valet mode

xtremej wrote:

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No as when the alarm is armed the relay acts as a open circuit for starter when disarmed its a closed circuit allowing it to start.

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So, it doesn't matter which side of the relay the wires are on?

It should matter though right? Because when its armed it creates a circuit with the alarm to allow it to remote start. I double checked the wires though and the only thing that was in the wrong place was the starter output (status) wire.