Question about 2002 Jeep Grand Cherokee
Cruise is last. the brains in the car dont allow this dangerous device to run, if things are bad. (even dead brake lights)
imagine cruise control out of control for a moment or with grand ma driving?
same with over-drive.
so what is wrong. well 1 simple answer
you failed to scan the PCM, and see those errors, causing those
get it scanned
Posted on Dec 26, 2015
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Posted on Jan 02, 2017
first, there is no 'fuse' identified in either of the Haynes or Chilton's manuals. I've looked. There could be a 'fuse link' somewhere in the line, as it's incomprehensible the folks at Chrysler would design this vehicle with a fire hazard built into it like that, no fuse or fuse link or relay known, but the mythological 'fuse' referenced in the troubleshooting section of both manuals.
In any case, if the vacuum line appears to not leak when you open it and **** on the line going to the rest of the vacuum system, or pull vacuum on it with a small handheld vacuum pump, and it doesn't leak, it then becomes an 'electrical' issue.
mine worked flawlessly for a a long time, and suddenly without warning 'died' and wouldn't work one day. It didn't go out on the job, in other words.
last but not least, references to the brake switch are made, but if the brake lights work, that seems to eliminate the brake switch as a possibility.
sounds expensive taking it to a Jeep dealership, but if you have a reputable one (hahahahahahah!) in your vicinity, they might zero in on it fast and fix it cheap, then again, they may not. Driving this vehicle without cruise control across country isn't so bad, but it requires a lot of foot wedging near the pedal, to get that done without having a very tired leg over time.
Posted on Jun 14, 2008
Fuse # 20, located in the Junction Block (interior, drivers side). This is a ten amp fuse.
Read the information at the above site. The TSB (technical service bulletin) may be of interest to you.
Posted on Nov 20, 2008
My 97 Jeep Grand Cherokee was doing the same thing. I changed the TPS ( Throttle Position Sensor) Now it is great goes into overdrive fine. It is really easy to change.
Posted on Feb 11, 2009
The clockspring behind the steering wheel is possibly defective or unplugged. It is the one and only component that all of your symptoms have in common.
Posted on Apr 27, 2009
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