89 Cherokee Keyless Install
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=40328
Printed Date: May 14, 2025 at 4:38 PM
Topic: 89 Cherokee Keyless Install
Posted By: 89cherokee
Subject: 89 Cherokee Keyless Install
Date Posted: October 05, 2004 at 2:29 PM
I have found the horn wire for the jeep. Only problem is that the horn will only work when the key is in the ignition, so I need to somehow wire up the horn so that it will work when the key is off. How would I go about doing this? Would it be easier to just splice into the wire at the horn itself vs. under the dash? Also does anyone know the color of the hazard wire? thanks
Replies:
Posted By: mo12v
Date Posted: October 05, 2004 at 2:59 PM
U will probably need a Relay | OEM Horn | GRAY (+) | AT HORN RELAY AT FUSE BOX UNDER HOOD |
------------- MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: Teken
Date Posted: October 05, 2004 at 5:22 PM
I have yet to see a North American vehicle which the horn does not work, without the key in the cylinder.
The horn is a safety device, which is always powered, and ready to use, such as your four way hazards.
If it does indeed operate as you discribe, then there is either a wiring fault, or someone has modified it to do so.
Regards
EVIL Teken . . .
Posted By: 89cherokee
Date Posted: October 05, 2004 at 5:27 PM
Well I posted on a Jeep only site and the responses I am getting is that it only works with the key in and the ignition turned to on. K
Posted By: mo12v
Date Posted: October 05, 2004 at 6:26 PM
YIKES............it's a 1989.....My brain hurts
There R some, sorry to say, U.S. vehicles that the horn does not work without the key on.
What wire did U have? I think this will give the same results at the Horn relay, as U noticed the color was Gray and it is a + positive input. Try it............
OUCH !  ------------- MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: Teken
Date Posted: October 05, 2004 at 6:28 PM
You have to love that American ingenuity . . . 
Posted By: 89cherokee
Date Posted: October 05, 2004 at 6:39 PM
Well I tapped into the black wire that is negative from the steering column. I know this is the right wire, as the horn will not work with it off, and when I have the ignition on and use my keyless, the horn honks. W/o the ignition, then the horn doesn't. So I need to find the grey wire listed above and run a relay to supply 12V to the horn from the alarms negative horn output? Great. Any luck w/ finding out the color of the hazards??? Kellen
Posted By: Teken
Date Posted: October 05, 2004 at 6:45 PM
Jeep
Cherokee
1988-1990
Remote Starter Wiring Colors and Notes
Function
Vehicle Color
Location
Start:
DARK GREEN
IGNITION SWITCH HARNESS
Ignition #1:
YELLOW
IGNITION SWITCH HARNESS
Ignition #2:
ORANGE
IGNITION SWITCH HARNESS
Ignition #3:
N/A
Accessory:
BROWN
IGNITION SWITCH HARNESS
Brake Light:
LIGHT BLUE/BLACK OR
LIGHT BLUE (+) AT SWITCH
Tach Signal:
GREEN/ TAN OR GREEN
AT IGNITION MODULE OR DASH TACH *
Parking Lights:
DARK BLUE
(+) AT LIGHT SWITCH
Headlights:
TAN/BLACK
(+) AT HEADLIGHT SWITCH
OEM Alarm Disarm:
N/A
OEM Alarm Arm:
N/A
Diesel Glow Plug:
Clutch Bypass Wire:
Notes:
* 4.0L Engine Only Is Electronic Fuel Injection. Rest Are Carburated Or Throttle Body Injection.
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Jeep
Cherokee
1988-1990
Alarm and Keyless Entry Wiring Colors and Notes
Function
Vehicle Color
Location
Constant +12 Volts:
RED
IGNITION SWITCH HARNESS
Starter Kill:
DARK GREEN
IGNITION SWITCH HARNESS
Ignition +12 Volts:
YELLOW
IGNITION SWITCH HARNESS
Dome Lights/Superv:
BLACK/ TAN OR
BLACK/ WHITE (-) AT PIN SWITCH
OEM Horn:
GRAY/RED OR BLACK
(-) STEERING COLUMN HARNESS
Power Lock:
WHITE
LOCATED IN DRIVER'S KICK PANEL **
Power Unlock:
DARK GREEN
LOCATED IN DRIVER'S KICK PANEL **
Trunk Release:
N/A
Alarm Input Wire:
BLACK/ TAN OR
BLACK/ WHITE (-) AT PIN SWITCH
Notes:
** Without OEM Keyless Entry See Note #203 - Reverse Polarity Door Lock Diagram. With OEM Keyless Entry: Lock - L GREEN, Unlock - TAN, Find Wires At Relays Below Passenger Dash And See Note #202 - Positive Pulse Door Lock Diagram.
Posted By: Teken
Date Posted: October 05, 2004 at 6:51 PM
Jeep Cherokee 1989
Remote start / Security / GPS
Wire/Function Colour Location/Description Polarity
12 VOLTS Red Ignition harness +
IGNITION Yellow Ignition harness +
ACCESSORY Brown Ignition harness +
STARTER Green Ignition harness +
LOCK White* In driver's kickpanel Rev Pol
UNLOCK Green* In driver's kickpanel Rev Pol
DOORPIN BLACK/ white At courtesy light under dash -
TRUNK PIN Common with doors
TRUNK RELEASE Manual release
BRAKESWITCH Blue At switch above brake pedal +
HORN BLACK/ red At steering column -
DRIVER WINDOW UP Yellow At main window switch REV POL
DRIVER WINDOW DOWN Lt.blue At main window switch REV POL
PASSENGER WINDOW UP Orange At main window switch REV POL
PASSENGER WINDOW DOWN Brown At main window switch REV POL
LEFT REAR WINDOW UP Orange At main window switch REV POL
LEFT REAR WINDOW DOWN Tan At main window switch REV POL
RIGHT REAR WINDOW UP Yellow/black At main window switch REV POL
RIGHT REAR WINDOW DOWN Lt.blue/black At main window switch REV POL
HEADLIGHTS Tan/black At light switch harness +
REVERSE LIGHTS WHITE/ black In driver's kickpanel +
DIMMER ORANGE / black At light switch harness
VSS WIRE WHITE/ orange At PCM on pass. Side firewall
KEY SENSE Lt.blue Ignition harness -
DATABUS INTERFACE Pin-2(top row from left) Diagnostic plug below dash DATA
Vehicle notes
* If the vehicle is equipped with keyless entry, the doorlocks are LT.GREEN for lock and TAN for unlock, positive pulse.
Note: The information on this sheet is provided to you on an as is basis with no representation or warranty of accuracy whatsoever. It is the sole responsibility of the installer to check and verify any circuit before connecting to it. Only a computer safe logic probe or digital multimeter should be used. Wiremagic.com Corporation and/or any associated or unassociated individual or corporation who furnishes this document and/or software assumes absolutely no liability or responsibility whatsoever pertaining to the accuracy or currency of the information supplied. The installation in each and every case is the sole responsibility of the installer performing the work and Wiremagic.com Corporation and/or any associated or unassociated individual or corporation assumes no liability or responsibility whatsoever resulting from any type of installation, whether performed properly, improperly, or in any other way. The information supplied is a guide only.
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Printed at: 10/5/2004 7:49:05 PM
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