Helping my brother install his Compustar system after reading on here how much most of you liked them.

Anyhow, here's the problem, he bought SPDT relays. Wired them up correctly to the door locks.
Blue/Black is lock it works fine. All blue is unlock and when he wired it up, nothing. The brain clicks but the relay doesn't.

I reversed the blue/blk (lock) and blue (unlock) wires (two relays) and the lock button will unlock the car (it will trigger the unlock relay) so the relay is not the problem.

I hooked my multimeter up to the blue wire and it shows a constant 12volts+.
The way the instructions are written, the blue grounds the relay when it is triggered.
When I trigger the remote, the voltage drops to 7-8volts then jumps up to 12v.
Another issue is, the one set of instructions also says that lock is a grounding system and unlock is a positive system. The other set of instructions says they are both grounding systems.
Either way, I wired the unlock relay both ways, brain grounds the relay and brain feeds + to the relay, neither way worked.


Is there something I'm missing here?

 

What is the MM&Y of the car?
On a Honda/Acura that has power door locks relays are not required, it is a low current ground pulse that is needed, [what the door lock outputs of the Compustar has.
If you added door lock actuators the relays need to be wired like this... http://www.the12volt.com/doorlocks/page3.asp#arp "Actuators / Reverse Polarity" 94

 

I was afraid you'd ask what kind of car it was.

It is an '88 Dodge Shadow Turbo with the Shelby Package, turbo intercooled, 4 wheel disc, etc.

It uses 5 wire switches. The two wires that bridge to the other door are always grounded, through the switch. When the switch is moved one of the wires breaks from being a gound and adds 12+. The opposite wire adds 12v+ to do the opposite function.

We have the relays wired up like the site you sent me a link to and they do work properly for the lock side. When I trigger the remote the alarm brain grounds the blue black wire and the relay we added clicks and the doors lock. If I unhook the blue black wire from the lock relay and hook it to the unlock relay and trigger the remote (to lock) the doors unlock. This tells me that the relays are hooked up properly.

When I hook up the blue (unlock wire from brain) to the unlock relay, nothing happens. The brain clicks like it is doing something but the relay is not triggered.

We have two sets of instuctions for the CM3000. One set says the unlock wire is sending a ground and the other set says it is sending a positive. Confusing huh? When I hook the multimeter to the blue wire it has 12v+ constantly. When I trigger the remote the voltage drops to 7-8 volts.

Do you think that means that the brainbox is defective?
I can't call compustar because they only help dealers.

 

Sorry lost power here.....

Yes the Dodge has a "Type C" door lock system, [rest at ground] the 2 oem car wires that have to be cut, and relays installed on them, are the orange - lock and the pink - unlock... http://www.directwholesale.net...ID=16 the relays should be wired like this... http://www.the12volt.com/doorlocks/page3.asp#5w "5 Wire Alternating 12 Volts Positive Door Locks" the purple, [unlock] wire would be the pink wire and the green, [lock] would be the orange wire.
And yes the relays must be wired properly.

How did you end up with 2 sets of instructions?

Here is a 3rd, and I know they are correct, and so are both of yours... http://www.staub.ca/tech/Manua...l.pdf the door lock outputs are "reversing" both wires pulse when you press for lock or unlock. one pulses a pos.(+) the other pulses a neg.(-) when you lock then when you unlock they reverse, [not so confusing] all you need to know is which is the neg.(-) pulse... http://www.staub.ca/tech/Manua...l.pdf

It sounds like you have a recalled CM3000, [risk when buying from unauthorized dealer] there was a batch of CM3000s recalled for that reason, unlock output circuit miswired, [diode backwards] check the output on the orange/black wire, [CN4/3] used for unlock, (-) 250mA output on unlock only, used for priority door unlock, check programing menu #1, 1-4 Drivers Priority Unlock, and no without adding a relay you will not get priority unlock but you should get unlock.

Compustar will help the consumer... http://www.compustar.com/support_C.htm bottom of page.
However, as I said, if you did not get it at an authorized dealer, then they will not help... http://www.compustar.com/warranty_info.htm and... http://www.compustar.com/internet_sales.htm


You just got to hope the orange/black wire works, there was nothing else wrong with that recalled unit.

Good luck. 94

 

Sounds like we may have a recalled unit here.
Is there any chance you have a list of the serial numbers that were bad?
Is there anywhere that has the diode's location? I could just reverse it myself.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote"> check the output on the orange/black wire, [CN4/3] used for unlock, (-) 250mA output on unlock only, used for priority door unlock, check programing menu #1, 1-4 Drivers Priority Unlock, and no without adding a relay you will not get priority unlock but you should get unlock. </TD></TR></TABLE>

I've reread this part a few times. I get the it should be -250mA. Are you saying I could wire the 2nd door lock up and just double click the remote so that I have an unlock function?


UPDATE: I wired up the orange black 2nd unlock and I now get unlock with two clicks of the remote. If we are unable to return this box he will at least have unlock although with two clicks of the remote. It's too bad I can't turn the two clicks off.


What I need is a dealer friend who could return this box to Compustar to get another one.

Thanks for your help.
Let me know if there's anything else you can think of.

 

Go to programing and turn on priority unlock, the orange/black wire should pulse a ground on the remotes first click, [it was designed to unlock the drivers door first] then the second click would pulse the blue wire that was wired to all the other door unlocks.

Yes it sounds like you have one of the recalled units.
Sorry I do not have the serial numbers.
I do not know what diode it is, but I assume you could fallow the circuit back from the output wire and find it and reverse it yourself, but then again it's probably surface mount technology and may not be so easy. 94

 

The Orange/Black wire grounds on the 2 clicks with the priority door locks turned on.
Turned off Orng/Blk doesn't do anything.

Well we're going to contact the guy we bought it from.


Thanks for all the help.

 

What happens on the blue wire when "Drivers Priority Unlock" has been programed on?

I would also maybe check the output from the blue and the orange/black when you program "Double Pulse Unlock" on, [should only give a double pulse on the unlock wire blue neg.(-) blue/black pos.(+), but can't hurt to check.