Print Page | Close Window

91 mercury grand marquis bulldog 5002

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=22197
Printed Date: April 30, 2024 at 10:15 AM


Topic: 91 mercury grand marquis bulldog 5002

Posted By: bigmike022
Subject: 91 mercury grand marquis bulldog 5002
Date Posted: December 01, 2003 at 7:14 PM

i have a 91 mercury grand marquis 4 door . im not sure if the doorlocks are type A or type C. i have 2 relays and need a little help wiring them correctly. can someone give me some advice??



Replies:

Posted By: defective
Date Posted: December 02, 2003 at 10:03 AM

the locks in this vehicle are Reversal at reset ground

Lock - pink/light green(-) - driver kick panel

Unlock - pink / YELLOW(-) - driver kick panel

Also, these cars quite often have the two wires backwards, so test them



-------------




Posted By: bigmike022
Date Posted: December 02, 2003 at 5:05 PM

the instructions for my bulldog model 5002pro doesnt clearly or properly state the correct way to wire the overide switch. it has a two pin plug with 1 of the wires not attached to anything and the other one going to the switch. from there, the ground (which i have grounded securley)where does this loose wire go, positive or ground???? or could it be anything else?my ignition wire is connected. any help would be greatly appreciated.





Posted By: zargon
Date Posted: December 02, 2003 at 5:37 PM
the loose wire goes to ground, if the bull dog does not se ground through the switch it will not start the car.

-------------
zargon ruler of estranorth




Posted By: bigmike022
Date Posted: December 02, 2003 at 5:45 PM
ok ill try to ground it . i didnt try to do that because i grounded the ground wire coming  off of the switch. the loose wire comes out of the plug with the overide switch 




Posted By: zargon
Date Posted: December 02, 2003 at 5:48 PM
don't ground that wire i dont know what it is without instructions

-------------
zargon ruler of estranorth




Posted By: bigmike022
Date Posted: December 02, 2003 at 6:11 PM

well it pictures it going to a anti car jacking switch which i did not receive





Posted By: bigmike022
Date Posted: December 03, 2003 at 8:51 AM

i have type C doorlocks. so i connected two relays as shown on the bulldogsecurity website . it said type C reverse polarity. im havin problems with my module getting the negetive signals from the keyless entry wires. so i used the - acc. wire. it will unlock the doors but when i tried to see if it would lock the doors it wouldnt. however when i touch the wires to the frame and ground them the door will lock and unlock . another thing i was wondering , i saw the diagram for my doorlocks on 12volt website and there were two wires different then the other diagram i saw. it was on the unlock side . the #s 85 and 86 were switched 85 gettin +12 volt and 86 was the wire from the keyless module. on the bulldogsecurity website 86 getting +12volt and 85 wire from keyless module. can anyone help me figure these problems out





Posted By: bigmike022
Date Posted: December 03, 2003 at 4:10 PM
i have been connecting keyless entry and illuminated entry with relays to my 91 mercury grand marquis. i have a bulldog 5002 pro alarm. i guess im not getting enough negative power from some of the wires coming from the brain because it wont switch the relay. when i touch the wire from the relay to ground on the frame they all work fine. the alarm has been sitting for about 2-3 years, could this have caused the problems. i just recently decided to install it and have had so many problems im thinking about buying a new system. can anyone help




Posted By: mikeshonda750
Date Posted: December 03, 2003 at 10:53 PM

Im not an expert, but I just finished with a 92 town car. Yeah they are different years makes and models but still a ford and probably similar. If i recall correctly it was a positive pulse system per our software at the shop(or maybe it was a negative pulse.. or reverse polarity hell i dont remember). Anyways, after lots of digging and testing I finally broke down and pulled the door panel apart. Using a jumper wire directly from the door switch to -/+ i found the problem. Every sheet i pulled up off of several CD's and out of several manuals, even our Mitchell were all wrong. The car required no relays at all, just some added wiring from the factory doorlock relay system (buried behind the glove box) and i was in buisness.

I dont really think i answered your question other than to not trust everything you read. With the keyless entry wires, simply try going from your alarm/starter/ect directly into the back of the drivers door lock switch and see what you find... may not need a relay at all. Then again.. im no expert



-------------




Posted By: draasch
Date Posted: December 03, 2003 at 11:55 PM
Make:   Mercury
Model: Grand Marquis
Year:    1990-91
This Database Was Last Updated On:    6/9/2003
Index #: 8375

Alarm
Constant 12 volts YELLOW (5 TOTAL) IGNITION SWITCH HARNESS
Ignition 12 volts RED / LIGHT GREEN IGNITION SWITCH HARNESS
Starter WHITE/ PINK IGNITION SWITCH HARNESS
Dome Light BLACK/ LIGHT BLUE (+) AT PIN SWITCH OR COURTESY LIGHT
Trunk Pin Switch N/A
Parking Lamp BROWN (+) AT LIGHT SWITCH
Power Lock PINK/LIGHT GREEN DRIVER KICK #203
Power Unlock PINK / YELLOW PANEL *

#203- See Reversal Rest At Ground Door Lock Diagram. * It Is Common For Lock & Unlock Wire Colors To Reverse

-------------
Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt





Posted By: tuneman
Date Posted: December 04, 2003 at 2:03 AM

Sounds like you might need a new alarm :-(     It sounds like you might know a little about relays and wiring.    If you have a digital multimeter with a current setting, connect your positive meter lead in line with one of the lock/unlock triggers and ground your meter with the grounding lead and set it to the proper setting.   Most alarms put out 200 milliamps, a relay only needs like 50 milliamps or so to trigger.



-------------





Print Page | Close Window