2001 Saturn SC - Answered Questions & Fixed issues

The wiring diagrams for this vehicle are about 60 individual pages. Which diagram are you looking for?

Has to be done at dealer

Testing the the O2 sensor an other vehicle testing procdures should be done before replacing parts . The rear o2 has nothing to do with this code . P0133 Testing H02 Sensor

Sorry, at the moment I don't understand acm? Is the fuse in underhood fuse block or interior? I did look at power distribution fuse wiring for your vehicle, didn't see acm?

Good luck I had to find a used one and got very lucky or I think the part was about 250.00$

Test fuel pressure, ignition module, ignition relay, fuel pump relay and fuses (2).

You can have one of several issues that can't be determined without a fault code reader to narrow it down. Typically, it sounds like you have a fuel supply related issue, but it could easily be something else like an unplugged vaccuum line, or faulty EGR. It is best you buy an inexpensive fault code reader and a Haynes Manual for your car... look up the codes in the chapter on Emission Controls and get back with us for assistance. A vacuum line diagram is located under the hood, go over every lie carefully and look for cracks and leaks, check the air filter box and any larger hoses carefully for cracks. You can do this easily, be patient and do a thorough job of it. Pull out a single spark plug and look at it for excessive carbon deposits. Replace with DENSO Iridium plugs that last 60K miles. Look at you spark plug wires... you will need an inexpensive multimeter to check them; Radioshack has them for cheap.

try checking your ignition fuse

If it won't even ''crank'', then it is probably a bad ignition switch. If it does ''crank'', then there are too many possibilities for internet diagnosis. (But if _no crank_ after starter and battery replacement, it's a good bet that it's a bad ignition switch).

you will have to drop the gas tank to remove the fuel pump

If you have $13,000 I will Show you step by step to Building you're car, in 11 months

on the back of the engie just above the right side alxe shaft

question what is it doing " lights come on /clicking /or just nothing"?

How old is the battery? If over 3 years it may take a prolonged amount of time to recover from a complete drain. There's a chance that the battery will never charge again too.

because there have some problem on your car, take your obd2 scanner to have check. OBD Tools 365 Days Shop

Your Body Control Module is failing. Your unit is behind the glove box up toward the top. Replacing this BCM is easy, but you'll need the dealership to adapter the unit with your car.

Have you checked your spark plugs yet? This is a Cylinder 1 misfire. Most likely just plugs and wires but these also had an issue with the intake gasket leaking air and causing a misfire code. Spray carb cleaner or brake cleaner along the intake manifold where it touches the cylinder head and see if the engine almost dies while running, if so then you know yo have a leaking intake gasket.

I wouldn't worry about testing it...it would be easier to replace it if it is faulty. The downstream sensor will not cause you problems like the upstream will. My advice? Just replace it...you will be down underneath already...

Saturns have alot of issues with there sunroofs.Weak tracks,motor gear strips out alot.Windows not related to sunroof.Rear window regs have a plastice slider block that breaks causing rear windows to roll down but then not up.Maybe master switch on front window concern

In your center console fuse block wiggle the wires on the back side, if the car starts it is the wire in terminal F5