1999 Grand Cherokee alarm wiring

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hieghts

Member - Posts: 22

Joined: December 15, 2003

Location: United States

Posted: December 31, 2003 at 7:59 AM / IP Logged

I have a 99 Jeep Grand Cherokee with a black key. I was told I need a 455J module for my valet remote start. How does this wire in to the databus connector under the dash? Can this wire just be soldered to the one in the connector or does it have to be cut? Any info would be appreciated.

serialthrlla

Copper - Posts: 57

Joined: December 23, 2003

Location: United States

Posted: December 31, 2003 at 6:54 PM / IP Logged

you tap it into a wire in the ODB connector. it interprets the multiplex wiring for the locks and alarm.

hieghts

Member - Posts: 22

Joined: December 15, 2003

Location: United States

Posted: January 02, 2004 at 8:35 PM / IP Logged

Does anyone have a diagram on how to wire the parking light wire from my valet alarm to the yellow - wire on my headlamp switch. Supposedly I need a 1K resistor wired in. Any info would be appreciated.

HamiltonAudio

Silver - Posts: 278

Joined: October 15, 2003

Posted: January 02, 2004 at 8:53 PM / IP Logged

my sheet shows you pulsing negative through a 240 ohm resistor. Your valet alarm will likely have a positive park lamp output. Simply use a relay to change to a negative pulse, and run the resistor in-line.

hieghts

Member - Posts: 22

Joined: December 15, 2003

Location: United States

Posted: January 02, 2004 at 8:56 PM / IP Logged

My valet alarm does have a negative pulse already, so do I just put the resistor where I tap into the factory wire. Does it matter which way the resistor flows current? The data sheet on this site says a 1k resistor. How do I know which one to use? Thanks for the reply.

hieghts

Member - Posts: 22

Joined: December 15, 2003

Location: United States

Posted: January 02, 2004 at 10:01 PM / IP Logged

I am installing a valet r/s-alarm in my 99 grand cherokee. For the parking light wire the diagram says I need a 1K resistor. Can I use one from radio shack? They list a 1/4, 1/2, or 1 watt resistor, which one do I need? Does it wire in where it tap into the factory wire? Any info would be appreciated. Thanks

RufNUSD

Copper - Posts: 184

Joined: December 10, 2002

Location: United States

Posted: January 02, 2004 at 10:03 PM / IP Logged

Yes, either will be fine, Yes.

Someone pass me that bottle.

hieghts

Member - Posts: 22

Joined: December 15, 2003

Location: United States

Posted: January 03, 2004 at 10:17 AM / IP Logged

There is supposed to be a tan with white tach wire at the pcm, but there is not. I found another wire that might be the right one. It shows 5v ac when it is running, but doesn't change under acceleration. Is it supposed to? Any info would help, thanks

Geeque

Silver - Posts: 310

Joined: October 07, 2003

Location: United States

Posted: January 03, 2004 at 10:27 AM / IP Logged

PCM Right rear corner of engine compartment, tan/wht; its there!!!!! 1999 Grand Cherokee alarm wiring - Last Post -- posted image.

Gary Kline

MECP Master Technician

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1999 Grand Cherokee alarm wiring

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