Question about 1999 Jeep Grand Cherokee

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Up near the sunroof in the inside are the controls for it and ond button has ASC on it. I don't have a clue what it is for. I don't have a manual for the vehicle since I bought it used. What is ASC?????

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It controls the sunroof when you turn the car off. If its green the sunroof will close when the car is shut off. If it is read the sunroof will stay in whatever position it is in when the car is turned off.

Posted on Nov 14, 2010

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1 Answer

1999 jeep asc sunroof won't open

get it serviced,
or read the FSM, it covers that.
what are you asking, ???
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or what, look for the blown fuse?

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Asc sunroof was stuck open had to remove motor to close tested motor and it works fine. The control switch luminated however the asc button would not turn red. Help were should I look next?

These aftermarket ASC sunroof are among the best but they do require frequent lubrication and maintenance. Use WD-40 or other penetrating oil anywhere that appears rusty, and use a lightweight grease for all tracks, pivots, and gears. After thoroughly lubricating the tracks, gears, and pivots, check to make sure that the END STOP microswitches are properly adjusted and providing continuity. It is also possible that the controller has failed.

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I have a warning light on with an ! in it not sure wot it means could u help plz

If you have an automatic transmission, you may have two exclamation points in warning lights on the dash. The one in the circle with gear cogs around its perimeter is an error warning light for the computer in the automatic transmission. I have never had that light, but I would first disconnect the battery to try to clear it, and if that failed, I would have to take the car to a good independent shop that specializes in BMWs. Go to Car Talk website for recommendations for a shop.
The exclamation point in a triangle which in turn is in a circle, located between the speedometer and tach, is for the Automatic Stability Control. It should illuminate when you press the ASC button on the console which turns the ASC off. The light warns you when the ASC is turned off.
If there is a problem with the ASC, the most common problems are: 1) Failed switch in the console. 2) Damage or foreign objects in the wheel speed sensors. There are tooth wheels near the front brake rotors and on the rear axle. There are sensors near the toothed wheels that detect wheel speed. The the sensors must be the correct distance from the toothed wheel. If their wires are chaffed, or the toothed wheel is bent or broken, they won't work. 3) Poor connections on the ASC electrical connectors under the hood. Look on the ASC (outboard) throttle body and on the brake controller module. 4) I once put on a new throttle body rubber boot, and I left the screw on the hose clamp positioned at 12 o-clock, up on top of the boot. The ASC throttle arm collided with the hose clamp screw so the throttle motion was restricted. That set an ASC error code and illuminated the light.

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finally a button with an exclamation inside a triangle with an arrow on the outside in a clockwise direction. You'll have one of these 4 buttons.

Simply pressing it once will partially turn it off - (depending if its dsc, if not dsc but asc then the system will be turned off)

If you press and hold however, the system will be fully turned off and a warning light will appear on the dash. Again this all depends on the system you have and if you need to press and hold until the light comes on the instrument cluster,or just to press once!

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if the roof is stucked up pull at the rubber lining around the inside of the sunroof (the one that seems like its just for looks) near the control button. then pull down on the inner roof cover and you'll see the back of the control button. there is an electrical connection there. see if it has come apart,. also check out if the motor of the roof control is spinning.if it is not spinning then replace the motor to make it work.

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