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1991 Jeep Cherokee, Compustar CM900


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derek isc 
Member - Posts: 3
Member spacespace
Joined: February 03, 2021
Location: Wyoming, United States
Posted: March 30, 2021 at 5:44 PM / IP Logged Link to Post Post Reply Quote derek isc
I looked here, I looked at Bulldog, I've looked at jeep forums, I've downloaded the master install guide, etc... I've spent weeks looking and reading so that when I did the install I wouldn't have any issues. However, the remotes don't seem to work (they probably do and it is my wiring). My understanding is the remotes are preprogrammed to the module. I have the compustar 920S kit. So, did I miss anything with the wire intallation. I bought the DM600 (CN-4) for the positive door locks.. I have bolded the wires I connected. Any feedback or help would be appreciated. I figured with a 91 cherokee, a DIY remote start would be easy wiring. 1991 Jeep Cherokee, Compustar CM900 -- posted image.
     91 Jeep Cherokee Wires          CN1 Main Harness
Constant 12V+     Red                Pin 1 Red
Parking Lights     Blue/Red       Pin 2 Green/White
Constant 12V+     Red                Pin 3 Red/White
Accessory     Purple                 Pin 4 White
No second ignition needed          Pin 5 Blue
Starter     Yellow/Green           Pin 6 Yellow
Ignition     Blue                   Pin 7 Green
To Ground                        Pin 8 Black
               
               Connector 3 (CN3)
Using connector on CN-1 Main Harness                    Pin 1 Green/White
Door Lock, using connector on CN-4 Relay Harness     Pin 2 Blue/Green
Door Unlock Using Connector on CN-4 Harness          Pin 3 Blue
For Transponder/Bypass module                         Pin 4 Black
Factory Arm                              Pin 5 Orange
Factory Disarm     Green/Orange (-)                     Pin 6 Orange/White
Horn Wire*     Black (-)                     Pin 7 White
Hood Closure     (-)                         Pin 8 Gray/Black
Brake Switch     White                          Pin 9 Light Blue/White
For use by original factory remote               Pin 10 Red/White
For use by original factory remote                    Pin 11 Red
Tach     Gray/Lt Blue or (Green)                         Pin 12 Yellow/Black
               
               CN-4
                                   Pin 1 Not used
Trunk unlocks with all doors, no auto release          Pin 2 Violet/White
No using prioriy unlock                     Pin 3 Orange/Black –
Door Unlock     Pink/Purple                     Pin 4 Blue
Door Lock     Orange/Purple                     Pin 5 Blue/Black
                                   Pin 6 Not used
               
               
               
Head Lamp     Brown/Black           Headlights vs park lights come on
Door Trigger     Yellow (-)           For Alarms and/or dome light supervision
__________ooooo
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_.(o)_)____(o)_)--o-)_)
kreg357 
Platinum - Posts: 7,441
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: January 30, 2009
Location: New York, United States
Posted: March 30, 2021 at 8:08 PM / IP Logged Link to Post Post Reply Quote kreg357
The wiring looks good. The only wire I'm not certain about is your CN1 Black Chassis Ground connection. From your symptoms, think I would connect that Black wire directly to a clean, rust free solid frame location with a soldered on terminal ring.
Yes, the remotes should come pre-paired with the CM900-s controller. Just double check the antenna harness connectors, etc.   If that doesn't help, the next step would be to try and pair the remotes. Pretty easy, just follow the steps in the install guide. You should hear a relay click inside the CM900-s controller during the process.
I would connect the Tach wire and run in Tach Mode. Adding the Hood Pin switch is a good idea for safety.
Soldering is fun!
derek isc 
Member - Posts: 3
Member spacespace
Joined: February 03, 2021
Location: Wyoming, United States
Posted: March 31, 2021 at 8:30 AM / IP Logged Link to Post Post Reply Quote derek isc
Thanks for the reply Kreg, I'll double check the antenna connection and the remotes are linked after work. I have plans to add the pin switch (if I used the (-) side of the under hood light, vs the switch, would that work?).
The module is auto sense for tach, and requires a change to option 2-10. Can this be done through the remote? Does anyone have steps for that? I like the idea of a hard wire vs the auto sense, just not sure it is worth hooking up if I can't change the options group anyway.
thanks again
__________ooooo
/___|___|__,\____\,___
|---|___|----[]llllll[]
_.(o)_)____(o)_)--o-)_)
kreg357 
Platinum - Posts: 7,441
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: January 30, 2009
Location: New York, United States
Posted: March 31, 2021 at 12:28 PM / IP Logged Link to Post Post Reply Quote kreg357
If the under hood light is turned on by a (-) signal then that would work.
Yes the Tach Mode option can be changed via the remotes. The programming change procedure is detailed in the CM900 Install Guide. Here is a link: https://www.the12volt.com/installbay/file.asp?ID=1428. In cold weather Tach Mode works best.
I would also change the Chassis Ground connection to the vehicles frame.
Soldering is fun!
mgoetz74 
Copper - Posts: 298
Copper spaceThis member consistently provides reliable informationspace
Joined: February 15, 2012
Location: United States
Posted: March 31, 2021 at 1:35 PM / IP Logged Link to Post Post Reply Quote mgoetz74
the key fobs that com with the RS? compustar key fobs are not pre programed to the brain. You have to do the ignition on off.. ignition on off.. ignition on off.. ignition on off.. ignition on and leave on then push the lock button on first remote (lights should flash) lock button on second remote (lights should flash) then turn the ignition off
31 years as a installer. Favorite thing to install/topic are remote starts/car alarms. Stop using test lights!!!
derek isc 
Member - Posts: 3
Member spacespace
Joined: February 03, 2021
Location: Wyoming, United States
Posted: March 31, 2021 at 6:43 PM / IP Logged Link to Post Post Reply Quote derek isc
Thanks, gentlemen!
I checked the antenna, all connections were solid.   I programmed the remotes using the method mgoetz outlined. It worked, locks and remote start. I do have the ground on the chasis. I'll get the tach hard-wired and the safety for the hood done. If I have further questions, I'll post back. Truly appreciate the help!
Derek
__________ooooo
/___|___|__,\____\,___
|---|___|----[]llllll[]
_.(o)_)____(o)_)--o-)_)

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