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Another Key Fob Question...

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Old Apr 15, 2014 | 05:34 PM
  #16  
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From: Harrisburg, Pennsylvania
Year: 1995
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Originally Posted by Silas09
For 15 dollars is it a good deal? Or is it cheap?
Both, it is definitely worth $15, and easily more.


The remotes themselves look like pretty much any other older automotive keyless remote both inside and out (the design resembles a late 90s Toyota/Isuzu remote), the included key-rings are a bit cheap but easy to replace.


The receiver module is a RF receiver chip, a few basic electronic components (capacitors, resistors, transistors, etc) and 4 relays (1 for lock, 1 for un-lock, 1 for trunk release, and 1 for flashing the lights). The build quality (soldering, etc.) is decent but not spectacular (like most made in china electronics) I've seen better, I've seen worse. All of this is in a somewhat bulky plastic casing. The main thing is that they didn't splurge on a dual-sided PCB or compact electronic components so the unit is probably bulkier than it needs to be (It could probably be 1/4 the size or smaller with a dual-sided PCB, surface-mount/miniaturized components, compact relays (or electronic circuits circuits capable of handling 15A rather than using relays with lower-amperage rated components to trigger them), etc.


I'm sure it doesn't have any of the fancy rolling-codes or other enhanced security features like most newer car keyless entry systems have, but neither did the OE XJ keyless entry system (with the 96 and older IR system being especially vulnerable), and it is not like it is hard to break into an XJ anyway

Last edited by dmill89; Apr 15, 2014 at 08:39 PM.
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Old Apr 15, 2014 | 05:42 PM
  #17  
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From: Huntington, IN
Year: 1998
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Originally Posted by dmill89

Both, it is definitely worth $15, and easily more.

The remotes themselves look like pretty much any other older automotive keyless remote both inside and out, the included key-rings are a bit cheap but easy to replace.

The receiver module is a RF receiver chip, a few basic electronic components (capacitors, resistors, transistors, etc) and 4 relays (1 for lock, 1 for un-lock, 1 for trunk release, and 1 for flashing the lights). The build quality (soldering, etc.) is decent but not spectacular (like most made in china electronics) I've seen better, I've seen worse. All of this is in a somewhat bulky plastic casing. The main thing is that they didn't splurge on a dual-sided PCB or compact electronic components so the unit is probably bulkier than it needs to be (It could probably be 1/4 the size or smaller with a dual-sided PCB, surface-mount/miniaturized components, compact relays (or electronic circuits circuits capable of handling 15A rather than using relays with lower-amperage rated components to trigger them), etc.

I'm sure it doesn't have any of the fancy rolling-codes or other enhanced security features like most newer car keyless entry systems have, but neither did the OE XJ keyless entry system (with the 96 and older IR system being especially vulnerable), and it is not like it is hard to break into an XJ anyway
Amen to that, did your wiring look similar to the picture I posted above
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Old Apr 15, 2014 | 05:49 PM
  #18  
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From: Harrisburg, Pennsylvania
Year: 1995
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Originally Posted by Silas09
Attachment 238993

Is this the same as yours? Mines a 98, look familiar to your 95


The plug itself looks similar but yours has more wires (my plug had a bunch of empty pins).


Here's a like to a wiring color chart for 97-98 (everything you need should be on the factory keyless plug):
http://www.commandocaralarms.com/wir...port/1153.html


I think the colors at least for power (may be red rather than pink though), ground, lock and un-lock are the same for a 97-98 as my 95, I think a 97+ will have a trigger for flashing the parking/turn-signal lights on the factory keyless harness (and possibly other things) which my 95 does not. It looks like I may have mixed up the lock and un-lock wires in my earlier post though.

Last edited by dmill89; Apr 15, 2014 at 05:54 PM.
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Old Apr 15, 2014 | 06:17 PM
  #19  
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Year: 1998
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Originally Posted by dmill89

The plug itself looks similar but yours has more wires (my plug had a bunch of empty pins).

Here's a like to a wiring color chart for 97-98 (everything you need should be on the factory keyless plug):
http://www.commandocaralarms.com/wir...port/1153.html

I think the colors at least for power (may be red rather than pink though), ground, lock and un-lock are the same for a 97-98 as my 95, I think a 97+ will have a trigger for flashing the parking/turn-signal lights on the factory keyless harness (and possibly other things) which my 95 does not. It looks like I may have mixed up the lock and un-lock wires in my earlier post though.
Mine has way more wires than that, lol, this will be interesting
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Old Apr 15, 2014 | 08:07 PM
  #20  
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Originally Posted by Silas09
Mine has way more wires than that, lol, this will be interesting
Know the feeling, when I did mine I had difficulty finding a good diagram/table of the wires for my year (it seems to be easier to find this info for 97+s though) so I ended up just touching the hot (pink) wire to the others to find out what they did (not recommended, I blew the fuse twice).


In looking over the various diagrams/charts it looks like they used the same colors for lock/unlock for all the Chrysler years (91-01), if the diagrams/charts are correct.

Last edited by dmill89; Apr 15, 2014 at 08:23 PM.
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Old Apr 15, 2014 | 08:19 PM
  #21  
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Originally Posted by dmill89

Know the feeling, when I did mine I had difficulty finding a good diagram/table of the wires for my year (it seems to be easier to find this info for 97+s though) so I ended up just touching the hot (pink) wire to the others to find out what they did (not recommended, I blew the fuse twice).
I'll keep you updated when I try to install this thing when I finish re covering my headliner.
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Old Apr 22, 2014 | 06:07 PM
  #22  
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Year: 1998
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Originally Posted by dmill89
Know the feeling, when I did mine I had difficulty finding a good diagram/table of the wires for my year (it seems to be easier to find this info for 97+s though) so I ended up just touching the hot (pink) wire to the others to find out what they did (not recommended, I blew the fuse twice).


In looking over the various diagrams/charts it looks like they used the same colors for lock/unlock for all the Chrysler years (91-01), if the diagrams/charts are correct.
Just finished up my headliner and ready to wire up the new key fob. The chart that you linked doesnt seem to fit my needs.
These are the color of wires that I have:
White with black stripe
Purple
Blue
2 Black
Yellow
Pink
Black with red stripe
Light Blue with red stripe

Can someone help me out?
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Old Apr 22, 2014 | 06:09 PM
  #23  
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Year: 1998
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Here is the key fob wiring diagram for the new one, which wires to I connect to which?!
Attached Thumbnails Another Key Fob Question...-image-2910681512.jpg  
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Old Apr 22, 2014 | 06:25 PM
  #24  
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Here's a link to a thread that might help:
https://www.cherokeeforum.com/f2/key...r-code-188254/


Here is the diagram in that thread, this is from the FSM (Factory Service Manual so it should be accurate but it is for a 99):


Name:  99OverheadModulePinout.jpg
Views: 74
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It looks like 12V+ is pink, - is black, dark-blue is unlock, and Light Blue with a Red stripe is lock.

Last edited by dmill89; Apr 22, 2014 at 06:28 PM.
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Old Apr 22, 2014 | 06:28 PM
  #25  
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Year: 1998
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Originally Posted by dmill89
Here's a link to a thread that might help:
https://www.cherokeeforum.com/f2/key...r-code-188254/


Here is the diagram in that thread, this is from the FSM (Factory Service Manual so it should be accurate but it is for a 99):





It looks like 12V+ is pink, - is black, dark-blue (purple?) is unlock, and Light Blue with a Red stripe is lock.

Thanks Dmill, that clears up that a lot but what would plug into what? The diagram of the new key fob is vague and I dont want to trial and error all day? Also what does "cut off to pneumatic lock" mean on that diagram?
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Old Apr 22, 2014 | 06:45 PM
  #26  
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Originally Posted by Silas09
Thanks Dmill, that clears up that a lot but what would plug into what? The diagram of the new key fob is vague and I dont want to trial and error all day? Also what does "cut off to pneumatic lock" mean on that diagram?
pneumatic locks would be air-actuated rather than electrically-actuated, some older vehicles used these, the XJ has electrically actuated locks so you don't need to cut that wire.


The wires from the box will be the same as noted in my previous post, the vehicle wires will change.


Red from the box will go to pink (+12V) from the vehicle harness.


Black from the box will go to black (-) on the vehicle.


Yellow and Yellow with a black stripe from the box will either go to Pink (+12V) or Black (-) on the vehicle depending on if the locks are negatively or positively switched. It was pink on my 95 but from what I read on the linked thread the 98 may be negatively switched with these going to black instead.


White from the box will go to Blue with a red stripe on the vehicle.


White with a black stripe will go to dark-blue on the vehicle.
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Old Apr 22, 2014 | 06:47 PM
  #27  
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Year: 1998
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Originally Posted by dmill89
pneumatic locks would be air-actuated rather than electrically-actuated, some older vehicles used these, the XJ has electrically actuated locks so you don't need to cut that wire.


The wires from the box will be the same as noted in my previous post, the vehicle wires will change.


Red from the box will go to pink (+12V) from the vehicle harness.


Black from the box will go to black (-) on the vehicle.


Yellow and Yellow with a black stripe from the box will either go to Pink (+12V) or Black (-) on the vehicle depending on if the locks are negatively or positively switched. It was pink on my 95 but from what I read on the linked thread the 98 may be negatively switched with these going to black instead.


White from the box will go to Blue with a red stripe on the vehicle.


White with a black stripe will go to dark-blue on the vehicle.
Thank you,Sounds simple enough, I will go try it, is there anything you have to do to program it once you hook it up or...
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Old Apr 22, 2014 | 06:57 PM
  #28  
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Originally Posted by Silas09
is there anything you have to do to program it once you hook it up or...
Nope, the remotes should already be programed to the receiver.
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Old Apr 22, 2014 | 09:24 PM
  #29  
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Year: 1998
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Originally Posted by dmill89
Nope, the remotes should already be programed to the receiver.
Got the headliner back in, overhead console, and have the new key fob hooked up, thank you dmill, couldnt have done it without your help, appreciate it.
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