2000 caravan no unlock

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hardwareman

Member - Posts: 2

Joined: January 02, 2005

Posted: January 02, 2005 at 10:08 PM / IP Logged

2000 caravan / bulldogsecuity 500deluxe rs/keyless entry Doors lock w remote but no unlock. I have tries a 665 ohm resistor for alarm applications and the 250 ohm no alarm and neither works. It does have alarm as far as I can tell (but no transponder key) The unit does send a negative pulse.. any help here folks?

ras

jcap

Member - Posts: 41

Joined: May 14, 2004

Location: Canada

Posted: January 03, 2005 at 12:41 AM / IP Logged

resistance for unlock for 2000 caravan is 2.0kohm.

jcap

hardwareman

Member - Posts: 2

Joined: January 02, 2005

Posted: January 03, 2005 at 12:49 PM / IP Logged

thanks - will try that however the dodge manual gives 249 ohm w/o alarm and 665 with alarm. I will try the 2k you suggest tx hardwareman

ras

gus1

Gold - Posts: 1,013

Joined: October 15, 2003

Location: Canada

Posted: January 03, 2005 at 7:40 PM / IP Logged

And use relays to provide a solid ground for the multiplexed doorlock system. Over on the left in the blue bar, you will find various "how to's", there is a part for relays. You need to wire up 2 relays for negative output to drive the doorlock outputs properly.

Gus

Wherever I go, that is where I end up......

mike7330

Member - Posts: 8

Joined: December 12, 2004

Location: Canada

Posted: January 03, 2005 at 9:18 PM / IP Logged

Hey hardwareman, you are on the right track, but there is a problem. Here it is.

With alarm: Use a 665ohm resistor for the unlock pulse, and a 4020 ohm resistor for lock.

W/O alarm: Use a 249 ohm (I used 220 and it worked fine) resistor for unlock, and a 1.5K ohm resistor for lock.

The unlock pulse always need the smaller number ohm resister. oh, and I installed this just last week, so I know this works for sure. The 249 and 1.5k I used.

This system need 2 different resistors to operate, as it is a single wire system, and use relays for better performance.

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2000 caravan no unlock

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