Question about 2002 Jeep Grand Cherokee

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What fuse disconnects the cruse control

Want to disconnect cruse control

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Disable, it for ever? why not pull the cruise switch connector pins.
or just doing service on it.
why not tell goal, what are you doing,
we can not guess that.

no matter, what the FSM covers that.
why not read that.?
Jeep model WJ
here is your answer on fuses.
on modern cars Cruise, is just part of the EFI system.
It's 99% software.
switch >>>PCM>>>ESCS
ESCS is the electronic speed control servo. (solidnoid box)
the PCM supplies power to the ESCS so , if you kill power to the
PCM the engine is now dead. no EFI.

you can try unplugging the ESCS connector
ive no idea how unhappy the PCM will be, why risk that?
do so on a test track or off road, and not kill US, on the road.
on newer cars the PCM slams you to LIMPHOME, for that trick.
no engine power and sucks fuel.

why not stated end goal and ask how to do this safely.?????

Posted on Apr 19, 2014

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I guess the cruse is'nt working? You first need to look it over to see if everythings hooked up. Did it work for you before or you haven't seen it work? The switch on the dash will light after turning it on but the car has to be running for it to turn on . Does the light light? if not check the fuses and see if thier any blown? To check to see that everything is hooked up find the throttle body, one cablr goes to the gas pedal and the other goes to the cruse, follow this cable to the cruse unit and see if that unit has all it's wires and hoses connected. To check you remove them and reconnect them looking into the plug or hose for dirt rust bent pins. The hoses can crack on the inside and leak which will make it not engage. Follow these hoses to where thier connected to the engine and the brake pedal as they can split and be disconnected there too. The brake pedal switch has to work too as does the clutch switch ( if it has a clutch) If the brake lights don't work niether will the cruse. The hi mount brake light if the bulbs fail the cruse won't work. The switch on the steering wheel can get disconnected too as it's on a clockspring circuit as the steering wheel has to turn. Is the airbag light on? if it is and the horn does'nt work either it's likly that the clockspring is broken, If the horn works and the airbag light cycles like it's suposed to then the clockspring is likly OK. The speedometer has to work too as the speed senser that works it also works the cruse.If everything is working your problem could be more seriuos but it's not likly as this unit is quite reliable.

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My cruse control stopped working. Could it be something simple like a blown fuse?

Possibly. Have you had it in to the dealer for service lately? There was a cruise control recall on that model. Dealers were told to disconnect the cruise until replacement parts were available. You could also try lifting the brake pedal with your toe while trying to engage the cruise system, If the brake pedal switch is out of adjustment it will not let the cruise activate. Always check fuses first though.

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Have you tested components under hood that may be defective, malfunctioning. or happen to become disconnected for one reason or another, before you replace switch?

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