For the abs warning light your most likely looking at a faulty abs sensor. Buy a cheap volt meter that measures resistance. Now unplug each abs sensor in turn and record the resistance of each one. One will be nothing or massively different to the others. To remove the sensor undo the bolt and use brute force to twist and extract it. Clean the hole out and fit the new sensor. The light won't go out immediately, you have to drive a short distance to allow the sensor to send a voltage back to the abs computer.
Be more specific! Warning light or check engine. If, warning light. What function?
brake pad warning light
If the oil pressure light goes on in a MK4 Golf Turbo make sure the oil used is rated from VW. Putting the wrong type of oil in the Golf Turbo continuously can cause the oil pressure warning light to go on.
You can reset the brake warning lights, on your VW Jetta, by backing up 20 feet and using the brakes. The automobile will sense the new pads and the warning light will go off.
Add oil!
Why don't you read the manual? All the warning lights are explained in there.......
Disconnect the battery for about 10 minutes. If there's no fault, the light will not come back on when you reconnect.
Vw jetta 2000 dashboard warning light is red similar to a sailboat symbol. What does this mean?
Top up ur oil
Bring to a shop that has an ABS scanner to determine problem
Brake pad warning light
THE BRAKE FLUID IS BELOW MINIMUM LEVEL IF THIS WARNING LIGHT COMES ON