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2000 Grand Cherokee
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Discussion Starter · #1 ·
Have a 2000 GC Laredo with 161K, am second owner and having problems recently where the anti theft system will randomly trigger. Will not disable with key fob. After taking out fuse for the horn, the hazards will stop flashing after the vehicle starts. According to YouTube, this seems to be a common complaint, is there any troubleshooting advice that might fix this other than disabling system completely?
 

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The beast from Brazil
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8,310 Posts
Welcome to the garage,
This is probably the door cylinder lock switch. You can measure first the resistance to be sure it is the problem. This switch is mounted on the back of the drivers and passengers door lock cylinder. This switch has internal resistors and the measured values should be:
Drivers door: Lock 473 ohms
Un-lock 1994 ohms
Passengers door: Lock 1994 ohms
Un-lock 473 ohms.
Also have a look in the drivers and passengers door rubber boots for broken wiring.
 

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2000 Grand Cherokee
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Discussion Starter · #3 ·
Will throw a multimeter on that tomorrow. Wire harness running to the drivers door is intact, no rubs, cracks or possible breeches there. Thanks for the time and advice. Will post a follow up.
 

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Same thing happened to me and our 2002 Jeep GC. What I was told to was lock the drivers door with the key. Use the key fob to lock the other doors. Then unlock the doors with the key fob and enter through the passenger door and try starting the Jeep. It worked for us.
 
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