Question about 1999 Jeep Grand Cherokee

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How do I reset the onboard computer on a 1999 jeep grand Cherokee

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  • 170 Answers

If you don't have a scanner tool, just disconnect the ground cable for about 15min, that should reset any trouble codes you might have. Good Luck.

Posted on Sep 06, 2010

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Posted on Jan 02, 2017

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SOURCE: shift indicator light 1999 Jeep Grand Cherokee

There are two parts to it, a voltage resistor, and the EL panel itself.

You need to remove the console first. There are 2 screws under the front rubber pad, two under the cup holder, two in the bin. Remove those six first, take the storage bin out, then slide the rear cupholder out, remove the two screws under the cup holder, and one in front of it.

There are a total of 6 flat screws, and 3 self tapping screws you have removed.

Put the parking brake on, shift the tranny to N, and the transfer case to the middle position if equipped.

Remove the entire console. Slide the shifter beezel as far up vertically as you can. There are 4 clips you ned to remove to do it.
You will see a blue and black wire running into the back. Follow those wires to the resistor. You will see a transparent EL panel attatched to the resistor by two clips.

Usually, one or both of these clips has come loose, causing the light to work intermittantly. Clip them back on, and turn on the headlights to confirm that the light works correctly now.

Re-install everything in the opposite order.

Posted on Oct 11, 2009

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SOURCE: jeep grand cherokee computer problems (will not

there are specific tests you can run before changing parts...You should show an open circuit with no resistance between b&c connector pins on the crank sensor. (check with ohmeter) You also need to check that you have fuel /spark and test related items. (cps can kill both)

Posted on Jun 05, 2009

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SOURCE: Reset the onboard computer

They mean to turn the ignition key from lock to run (don't turn it all the way to start) and back to off a few times. It's like restarting your computer after installing updates. Or you can unhook the negative battery cable for a couple of minutes to clear the codes from the computers memory.

Posted on Sep 13, 2009

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SOURCE: 1996 jeep grand cherokee wont start , tried

that is what i was getting at the crank sensor but you have to see if you have fuel pressure ( should be around 40-45 pounds ) and no power at the injectors then it is the crank sensor 38.00 dollar part at auto parts store the dealer told me 170.00 for one 2 weeks ago make sure you push it in all the way when you install it . if it starts giving you misfire codes loosen the sensor and push it in a little more and hold it as you tighten the bolt then clear the codes. hope this helps

Posted on Jul 25, 2010

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2 Answers

Where is the fuel reset switch on a grand cherokee


Grand Cherokee isnt have "fuel reset switch"; if you have a problem there, could be a fuse or wiring problem in the cricuit; also could be fuel pump itself. If you need other details, just ask, we have 1993-'98 Repair Manual.

Keep in touch.

Jul 25, 2012 | 1999 Jeep Grand Cherokee

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1999 Jeep Grand Cherokee...how do I reset the darn clock?


hi
on the dash clocks you have a reset button comming from the speedometer, it you turn this left and right that sets the hrs,mins.
hope this helps

Nov 05, 2009 | 1999 Jeep Grand Cherokee

1 Answer

Reset the onboard computer


They mean to turn the ignition key from lock to run (don't turn it all the way to start) and back to off a few times. It's like restarting your computer after installing updates. Or you can unhook the negative battery cable for a couple of minutes to clear the codes from the computers memory.

Sep 13, 2009 | 2000 Daewoo Leganza

1 Answer

I am looking for a 1999 jeep grand cherokee owners manual to download


Jeep Grand Cherokee 1999-2004 also called WJ, about this model can check the information there: Jeep WJ 2000 Electrocnic Service Manual

Other details find in:
- Jeep Grand Cherokee WJ 2002 (all sections / spanish)
- WJ Jeep (several tips and DIY)

Good luck (remember rated this help).

Sep 02, 2009 | 1994 Jeep Grand Cherokee

1 Answer

Jeep grand cherokee computer problems (will not


there are specific tests you can run before changing parts...You should show an open circuit with no resistance between b&c connector pins on the crank sensor. (check with ohmeter) You also need to check that you have fuel /spark and test related items. (cps can kill both)

Jun 05, 2009 | 1999 Jeep Grand Cherokee

1 Answer

Where is ecm computer located


On the right side firewall behind the coolant recovery bottle.

Jun 02, 2009 | 1999 Jeep Grand Cherokee

1 Answer

1999 Grand Jeep Cherokee (limited) shuts off while driving


Starter...if the starter is old, it is getting heat soaked. Replace the solenoid.

Mar 17, 2009 | 1999 Jeep Grand Cherokee

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