Question about 1993 Jeep Grand Cherokee

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I have a 1993 Jeep Grand Cherokee and the factory security system stopped flashing the headlights. The horn still sounds and the security light on the dash still flashes, but no headlight flashes...anyone have any ideas why?

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  • Jesse Harmon Jul 24, 2009

    I reset the alarm everytime I drive it. There is no problem arming or disarming the system. The problem is the headlights don't flash anymore when the alarm system is triggered. I've checked all the relays and replaced the security system module itself. Not sure what else to look for.

  • Jesse Harmon Aug 20, 2009

    I think someone cut the wire leading from the alarm module to the headlights. It had an aftermarket alarm in it when I bought it and I removed it. I'll have to tear into the wiring harness and find the cut wire.

  • Jesse Harmon Sep 11, 2009

    its fixed. There are about 4 fuses that supply power for the alarm system components. I missed one when I did the check the first time. Everything is working great now.

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It pain the *** mine did it in the heat go back the truck and put key in reset the alarm
hope this helps

Posted on Jul 24, 2009

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Hi James:
Just keep in mind that the 1993-1998 Grand Cherokee was called "ZJ Series", so they have the same device and systems; in your 1996 Jeep Grand Cherokee Anti-Theft System is equipped with Vehicle Theft Security System (VTSS).

VTSS system monitors vehicle doors, hood, liftgate and ignition. If an attempt is made to enter or operate vehicle without proper disarming of system, vehicle horn will sound, headlights, taillights and parking lights will flash, and engine will be prevented from running.

The following wiring diagram and electronics circuit contains detail schematics of The ZL's Jeep Grand Cherokee Anti-Theft System. HERE you will find interconnection between electronics parts of the system such as body control module, auto headlamp light sensor. VTSS led, driver door module, passenger door module, cylinder lock switch, junction block, power distribution center, and grounding.

Additionally, Is request your email account to send this diagram (big scale) and other details in PDF format where you will learn also how the Vehicle Theft Security System works, removal, installation, testing and troubleshooting procedures.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer. Keep in touch.

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Hi Andrew:
The 1994 Jeep Grand Cherokee Laredo Anti-Theft System is equipped with Vehicle Theft Security System (VTSS). VTSS system monitors vehicle doors, hood, liftgate and ignition. If an attempt is made to enter or operate vehicle without proper disarming of system, vehicle horn will sound, headlights, taillights and parking lights will flash, and engine will be prevented from running. I have an '93 GC 5.2L V8...

The following wiring diagram and electronics circuit contains detail schematics of The 1994 Jeep Grand Cherokee Laredo Anti-Theft System. Herein you will find interconnection between electronics parts of the system such as body control module, auto headlamp light sensor. VTSS led, driver door module, passenger door module, cylinder lock switch, junction block, power distribution center, and grounding. Herein you will learn also how the Vehicle Theft Security System works, removal, installation, testing and troubleshooting procedures.

Try HERE and also, remember that here can find the Jeep Grand Cherokee Service Repair Manual.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

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The following wiring diagram and electronics circuit contains detail schematics of The 1996 Jeep Grand Cherokee Laredo Anti-Theft System. Herein you will find interconnection between electronics parts of the system such as body control module, auto headlamp light sensor. VTSS led, driver door module, passenger door module, cylinder lock switch, junction block, power distribution center, and grounding. Herein you will learn also how the Vehicle Theft Security System works, removal, installation, testing and troubleshooting procedures.

Try HERE and also, remember that here can find the Jeep Grand Cherokee Service Repair Manual.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

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The following wiring diagram and electronics circuit contains detail schematics of The 1993-1998 Jeep Grand Cherokee Laredo Anti-Theft System. Here in you will find interconnection between electronics parts of the system such as body control module, auto headlamp light sensor. VTSS led, driver door module, passenger door module, cylinder lock switch, junction block, power distribution center, and grounding. Herein you will learn also how the Vehicle Theft Security System works, removal, installation, testing and troubleshooting procedures: Alarm_Jeep_Cherokee.pdf

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The following wiring diagram and electronics circuit contains detail schematics of The 1996 Jeep Grand Cherokee Laredo Anti-Theft System. Herein you will find interconnection between electronics parts of the system such as body control module, auto headlamp light sensor. VTSS led, driver door module, passenger door module, cylinder lock switch, junction block, power distribution center, and grounding. Herein you will learn also how the Vehicle Theft Security System works, removal, installation, testing and troubleshooting procedures.

Try HERE.

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