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Door Locks


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parnell6622 
Member - Posts: 8
Member spacespace
Joined: October 11, 2003
Location: United States
Posted: October 11, 2003 at 3:50 PM / IP Logged  
My door lock somtimes short circuits. I think i have the problem fixed, but just incase what could i install so it wont mess up my keyless entry module if it shorts again? A diode or a fuse in the connection? Im not sure? I have a 91 jeep cherokee 4dr
draasch 
Gold - Posts: 2,172
Gold spacespace
Joined: February 07, 2003
Location: Florida, United States
Posted: October 11, 2003 at 10:05 PM / IP Logged  
tell us a little more about the problem....
Good Luck
David
Ace Security
813-376-9778
Tampa
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parnell6622 
Member - Posts: 8
Member spacespace
Joined: October 11, 2003
Location: United States
Posted: October 11, 2003 at 10:58 PM / IP Logged  
On my jeep i had a bulldog remote start. I took it off bc the lock and unlock stopped working. Then one day i found out when i lock/unlocked my doors from the passinger switch it would blow a fuse. So i figured that the short circuit fried the module to the bulldog remote start. Now I think i have the problem fixed, and i want to install another remote start with keyless entry. But i dont want the chance of a short circuit frying my new module. So could i put a fuse or diode where i connect the module to the door lock/unlock? What could i do to prevent from frying the module?
draasch 
Gold - Posts: 2,172
Gold spacespace
Joined: February 07, 2003
Location: Florida, United States
Posted: October 13, 2003 at 7:01 AM / IP Logged  
here is the info that i have for that car.......
Make:   Jeep
Model: Cherokee
Year:    1991-92
This Database Was Last Updated On:    6/9/03
Index #: 8631
Alarm
Constant 12 volts RED IGNITION SWITCH HARNESS
Ignition 12 volts DARK BLUE IGNITION SWITCH HARNESS
Starter YELLOW IGNITION SWITCH HARNESS
Dome Light YELLOW (-) AT ANY PIN SWITCH OR COURTESY LIGHT
Trunk Pin Switch GRAY (-) REAR PIN SWITCH OR REAR LIGHT
Parking Lamp DARK BLUE/RED (+) AT HEADLIGHT SWITCH
Power Lock ORANGE / VIOLET DRIVER KICK PANEL OR AT RELAYS #202
Power Unlock PINK/VIOLET IN PASSENGER KICK PANEL
#202- See Positive Pulse Door Lock Diagram.
double check the hook ups that you had before....
did you replace your switch?? you might have a bad one. i have seen where they work fine for a bit and then start acting up
Good Luck
David
Ace Security
813-376-9778
Tampa
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italnpimp59 
Silver - Posts: 427
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Joined: August 26, 2003
Location: United States
Posted: October 13, 2003 at 10:11 AM / IP Logged  
the ORANGE / violet and pink/violet wires acutally require a negative pulse to lock or unlock.   i have a 97 jeep cherokee and i think all jeep cherokees from like 90 up to 2000 have those same wire colors for the lock system.  when i hooked up my alarm in my jeep, everything but the keyless entry worked b/c i had the relays wired for a positive pulse which is what the database on the internet said.   so even tho these vehicle wire diagrams help...always check to make sure.
parnell6622 
Member - Posts: 8
Member spacespace
Joined: October 11, 2003
Location: United States
Posted: October 13, 2003 at 11:24 AM / IP Logged  
I have a prestige remote start system and all i do is wire them strait to the unlock/lock wires. Yes i replaced the switch (that was making the short) But what im askin is. . .is there any kind of fuse or anything i can install between the lock/unlock wires and the module to prevent a possible short from hurting the module?
italnpimp59 
Silver - Posts: 427
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Joined: August 26, 2003
Location: United States
Posted: October 14, 2003 at 12:02 AM / IP Logged  
so the system has built in relays to lock/unlock?   you didnt have to use any relays at all for the keyless entry?
parnell6622 
Member - Posts: 8
Member spacespace
Joined: October 11, 2003
Location: United States
Posted: October 14, 2003 at 8:55 AM / IP Logged  
yes it has built in relays. I just i want to put some kind of fuse or some thing to make sure a short dont harm the module again but no one has given me any help on that subject. Doesent a diode only work in one direction? cant i use that? what size should i use?
HamiltonAudio 
Silver - Posts: 278
Silver spacespace
Joined: October 15, 2003
Posted: October 16, 2003 at 6:20 PM / IP Logged  

ok...I'll bite.  yes, a diode will only allow voltage to pass in one direction.  put 3 amp diodes on both the lock and unlock wires...this will prevent em from feeding back to the unit, which is what you want them to do...you've been right all along!

b
parnell6622 
Member - Posts: 8
Member spacespace
Joined: October 11, 2003
Location: United States
Posted: October 17, 2003 at 10:21 AM / IP Logged  
Thank you hamiltonsudio that is what i was wanting to know ALL ALONG. I dont know what the problem was everyone wasnt answering the question i wanted answered. Thanks!!!!
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