Question about 1999 Jeep Cherokee

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Master computer? Is there such thing as a master computer? I heard there is and controls the gauges, power windows, heat and a/c! And maybe more!

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Yes its behind the glove box on the vehicle and it controls everything on the vehicle. takes about 45 minutes to pull and then replace if so desired,,its a silver box

Posted on Jan 22, 2009

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Yes, It is Behind the Glove box and Controls the Entire Vehicle.

Posted on Jan 22, 2009

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1 Answer

My windows all the sudden won't roll down


Look for broken wires in the driver's door opening. Peel back the rubber boot on the wiring harness there, with the door open, and check the wires. The power wire and the ground wire for the windows are in that group of wires, going to the master control switch on the driver's door. If you can get the master switch out without taking off the inner door panel-which you may have to do to get to the master switch controls-then you could check for power and ground at the switch connector with a test light or voltmeter.

The first thing people do when their windows quit is to try a new or used master switch. If you don't have a tester, you could try that, but about 75% of the time, it is not the problem. I heard from a salvager when I was looking for a used one, that it was more like 90% of the time. Sure enough, half or more of his cars were missing the master switch.
There may be a fuse to check, but usually the power windows use a circuit breaker rather than a fuse. It should be under the dash in a fuse panel.

May 29, 2015 | Cars & Trucks

1 Answer

Power windows got rained on won't go up


Here are some things to check, is the problem in the master switch (the drivers door switch that can control all windows.) or check each door window switch for operation. check fuses. most likely if a switch shorted because of moisture it may have blown a fuse. Here's a long shot.... if the fuses are good, try a small amount of WD40 into the switch in question. ( wd40 does not conduct electricity and will wash out the moisture if any.) The next cheapest thing is to replace the switches, very easy to do. The master switch will be the most expensive one, since it has a control for all the windows.
I have had to replace 2 switches on my "04" dodge ram, the master switch that controls all windows,door locks, and power mirrors ($140.00), and a passenger side window switch, ($26.00).
I hope this helps, please let me know.

Aug 13, 2014 | 2003 Chevrolet Silverado 1500

1 Answer

Grounding problem with my power window motor on a 1997 chevy camero


Test the MASTER switch at the drivers side. It seems to be a "wiring problem with the Master switch. The master switch is the switch that controls ALL the cars windows.

The passenger window switch gets both power and ground from the master switch. You have replaced the passenger side switch and it still had the same result and if the wiring is good from the master switch to the passenger side switch, then the only thing left would be the power window master switch. Check all wiring of the Master switch. That's the only thing that's left to do.

Mar 17, 2014 | Chevrolet Cars & Trucks

1 Answer

2009 Ford Escape Temperature Gauge and Heat problem


Small leak in head gasket sounds right. When the engine is cold check the coolant see if its low if it is, that is the problem with your heater. Now you have to determend why its low. Test the radiator cap, pressure test the coolant system check the serpentine belt tentioner, lose belt can cause loss of coolant.

Feb 20, 2013 | 2009 Ford Escape XLT

1 Answer

Back windows wont roll down


i first check to see if you have a master power control switch at the driver side switches. If so, is it set to block? Also try pressing on and off a few times( maybe bad /corroded contacts inside the switch} . try the switch at each window{replace as necessary} there will be CIRCUIT BREAKERS not fuses you can check, also maybe window relays ,BURNT wiring, bad main switch,{master window} the last thing i would check is the motors themselves,doubt they would both be burned out!!! DAN F A.S.E. CERTIFIED TECH

Aug 19, 2012 | 2000 Hyundai Elantra

1 Answer

I need to find the fuse location for the electic window controls on the driver side, which is the master control


i dont thing is a fuse for that, all doors are contolled by a relay.and if it was a fuse would be 1 fuse for all doors too. maybe you have problem with your master contol. Thanks

Mar 28, 2011 | Oldsmobile Delta 88 Cars & Trucks

1 Answer

Gas gauge is not working, temp gauge is not working 1998 gmc jimmy


Try unhooking one of the battery cables and leave it off for at least 20 minutes. When you hook it back up the

computers should re-boot. That has solved problems for me with heater, interior lites, power windows, AC, day

time running lites, power mirrors, fast idle, rough or slow shifting, CD player, and wipers on GM autos and S-10

PU and Dodge trucks. None of the switches are connected to the device they control anymore. The switch tells

the computer to open the window and the computer sends a signal to the window motor. When the computer gets

confused strange things will happen or not happen. Things like one headlight stays off etc. I actually had to do

it twice on my Bonneville because the first time the AC blower would only work in low and medium. After the

second re-boot, everything was fine. Of course you may have to re-set your radio stations.

Sep 03, 2010 | 1998 GMC Jimmy

1 Answer

2006 chevy 2500 hd. Only the cluster gauges won't light up.


hello
i'm having trouble with the cluster in my 2500HD truck
1. the RPM and Oil gear works some of the time.
2. the drivers side windows wil not work and the relay to the secetion gets very hot.

Jul 30, 2009 | Chevrolet Malibu Cars & Trucks

1 Answer

98 chevy blazer power window issue


sugest fuse ck 1st thing. Master bypasses individual controls. Power supply to rear windows is interupted. Ck for connevtor under front seats. Fuse may be labrled accessory or per win.

May 12, 2009 | 1998 Chevrolet Blazer

1 Answer

Camry 1994 power windows dead!


It is rare that the circuit breaker fails.
What I would do if I were you, is to check to see is the 10 amp GAUGE fuse (under the dash) and the 50 amp POWER fuse (in the fuse box under the hood) are good. If both fuses are indeed good, the next thing that I would do is to check to see if you have 12 volts power in the BLUE wire going to the driver side door switch, in the harness connector, that connects to the main switch. If you have no power in the BLUE wire, you have a broken wire between the body & the door harness. This is quite common. If you DO have power in the BLUE wire, replace the driver side master control switch. if the contacts in the DRIVER's part of the master switch fail, there is no power transmitted to any of the other windows. Hope this helps, and thanks for choosing FixYa. Please feel free to comment back if you need any further info.

Nov 09, 2008 | 1994 Toyota Camry

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