1998 Oldsmobile Aurora - Answered Questions & Fixed issues

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Chassis ground? I have used redundant grounds on many automotive systems, so far no problems. I've seen them from firewall to engine block. I have heard of them being down around motor mounts. The point is, I don't believe it matters where you put it. I don't know where the factory ground point is located? Just my opinion.

Take the gear shifter apart an lube it . key graphite .

I'm just guessing: You may have a bad ABS Sensor. since you mentioned TRACTION Control. Traction Control controls the vehicle while it is in motion but a faulty or failing ABS Sensor could interfere with your traction Sensorbe the cause of your worries. Hope its a good guess!

The 1998 Aurora has 2 fusebox locations...a larger fusebox under the passenger side of the hood, (unscrew the large turnhandle in the center of the box to open) which contains the larger fuses, a fuse puller, and the relays.There is also a fusebox on the interior of the passenger side...open the passenger door all the way up, and look at the side of the console panel, between the glovebox and the door. There should be a "finger hole" for you to pull open. It may be VERY hard to get open; mine is. Here you will find the smaller fuses. A diagram of the contents are on the inside of both lids.
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On this website, you find fuse box diagram and description for Oldsmobile Aurora (1998) Oldsmobile Aurora 1998 fuse box diagram Auto Genius

go to page 316. http://www.manualowl.com/am/Oldsmobile/1998-Aurora/Manual/984

If signal lights are working, probably a failing headlight switch. Even though fuses seem OK, you can try replacing the appropriate fuse.

Sounds like CV joints(Front-wheel drive) need to be inspected / replaced..

Yes you have a broken line or bad master cylinder leak or seal depending on where you find the leak. Do not attempt to drive the car until you fix this because you will not be able to stop the car. In addition, after you repair the line you will need to bleed the air from the brake system before driving the car. Hope this helps.

Depends on which engine you have - it is not usually easy to find or get at while the engine is in the car. You should be able to get the info at a dealer using the VIN number of the vehicle.

You are sure that the dash control at or near the headlight switch for the interior lights isn't turned on??

i no this is not your model but it might give you some ideas... interior lights staying on Everything Electrical and Electronic

Try you tube !

Code P0603 means that the PCM's Keep Alive Memory (KAM) self test is failing. This is a routine self test that is performed periodically through out the day. This is critical because the PCM's Keep Alive Memory Modules store all of the PCM's adaptive calculations that need to be 'kept alive' or saved when the vehicle isn't operating. If this part of the PCM's functionality is unreliable, the powertrain's main computer can't be trusted to accurately do its job and may need to be replaced.

check all your grounds, and make sure none are broken or rusted over making a bad contact, it sounds like that could be the problem to me... with out seeing the car in person that is the best i can tell you...hope this helps,

It sounds like you have a malfunctioning alarm system. If it is an aftermarket system, you should simply turn it off. If it is a factory alarm it would really be best to take this to a dealer. In the mean time, to prevent battery drain, you can disconnect the black battery terminal at night when you park the car.

This usually means that one of the right side bulbs is bad...front or rear...check outside to find the non-blinking bulb...Hope this helps.

If you have brake lights, that switch is OK. The shifter release solenoid is built into the shifter. The whole shifter has to be replaced. It could be the wiring. Usually not though. Most times t is that high dollar shifter.

Take it to a shop. You need special tools to get it out If you need further help, I’m available over the phone at https://www.6ya.com/expert/kelly_69a0cf1b13789df1