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1997 Honda Civic, Compustar CM7000 Keyless Entry


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zerovandez 
Copper - Posts: 116
Copper spacespace
Joined: March 22, 2008
Location: California, United States
Posted: June 14, 2025 at 7:06 PM / IP Logged Link to Post Post Reply Quote zerovandez
Hi everyone. I have a 1997 Civic DX, interior converted to Civic EX without factory keyless entry. I have a Compustar CM7000 alarm system that I'd like to use for just keyless entry and no other security features. The install guide to the CM7000 states there's an unlock and a lock output. Both output a -250ma ground pulse.
On the vehicle - the driver door switch is 3 pin; middle is ground (common), and the pins on either side of it are lock and unlock. Here's part of the schematic for the driver side lock switch (which also unlocks passenger)
1997 Honda Civic, Compustar CM7000 Keyless Entry - Last Post -- posted image.
Would I be able to connect the ground outputs from the CM7000 directly to the vehicle lock and unlock wires at the switch without the need for additional relays? Also, the CM7000 is a remote start unit as well as security. I'm thinking I can only connect the constant 12v and ground for power without the need for accy, ignition, etc - any issues with this?
Appreciate your help!
lee.lopez 
Copper - Posts: 275
Copper spacespace
Joined: September 02, 2024
Location: Texas, United States
Posted: June 15, 2025 at 12:50 AM / IP Logged Link to Post Post Reply Quote lee.lopez
Yes, connecting to the switched wires should work just fine (with no need for accessory or ignition*). *The caveat is you need to temporarily pulse the ignition to program remotes (see below).
Remember Compustar remotes do not come programmed, so once you connect constant and ground, be sure to do this. I usually plug in the antenna right out of the box and use a 12 volt drill battery with a few jumper wires to provide power so I can do this at the work bench before installing. You will need to pulse the ignition wire while doing this.

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