Mechanics

SATURN L200 FUSE PROBLEM

2001 Saturn L200 • 123,000 miles

Engine quit, Car has 3/4's fuel, guage reads empty. Can't hear pump, fuse checks okay. I jacked up car to look for wireing harnass, no joy.
Avatar
Guest
November 7, 2012.



Thank you again. I will look for the same year and engine configuration in the junk yard tomorrow. Then, if I understand you correctly, I will have to use the relearn procedure to be able to start the car. Is this a one shot deal, or must I use it every time the car is started? Is the junk yard unit only for testing and must it be replaced with a new unit? If the only down side is an incorrect odometer reading I can live with that. I don't care about the mileage reading, and I don't think the state will either since the car is over ten years old.

These new(er) cars certainly are techie, and require a whole different set of skills to figure out. That's the downside for me, but on the other hand they go a lot longer between tune-ups and the engines last a lot longer. Cars used to end up in the junk yard before reaching one hundred thousand miles, today I'm driving a 1996 Silverado with 260,000 and all indications are that it will go a lot farther. Only failures have been a intake manifold gasket, water pump, alternator, and upper ball joints. Everything else was on the truck the day it left the factory. (Other than normal wear items like brakes and tires)

Best regards,
gr

Tiny
Aerospares
Nov 7, 2012.
No once you learn the pass lock your good to go you may have to have the used bcm programed if you have lights come on etc. The mileage change is federal not state so best to tell dmv about it. Also I know I cant find many L model cars in my pick a part so you may have to find one on ebay. Let me know if you have anymore questions.

Saturntech9
Nov 7, 2012.
Will do, and thank you very much. You da man!
All best,
gr

Tiny
Aerospares
Nov 7, 2012.
Your welcome thats what were here for please keep me posted with how you make out.

Saturntech9
Nov 7, 2012.
Hi Saturntec9,
Just installed a junk yard bcm, same year same engine. Fuel guage still reads empty. Turned ket to run position, then a fast hit on the start position. Security light flashing for quite a while, then steady until off at about tem minutes. Doing the second cycle now, two minutes into it and the security light is flashing.

Not sure if the fuel guage was supposed to be working as soon as the new bcm was installed. If so the ecm is not my problem, because I still do not have a reading on the fuel guage. Is that correct?
Gr

Tiny
Aerospares
Nov 8, 2012.
Lets finsh off the pass lock learn and see if it starts up the gas gauge should be working now but the real wild card is how good the tester bcm is?All my tester bcms are labeled what they were doing when I replaced them. You said the gas gauge stopped working when you had 3/4 of a tank of gas and there was a no start.I have tons of bcms do that when the bcms failed. Thats why I have the testers to check if the bcms are bad before putting a new one in. ALso thats why I suggested scanning the bcm for codes etc a lot of times when they fail the scan tool cant talk them ethier and that is a another indication of a bad bcm then I would put a tester bcm in and see if the scan tool could talk to that one. In your case we have to just improvise the best we can. So was the security light on when you had the other bcm in?Have you checked any fuses yet?Like I suggested you could do in a earlier post?Can you hear the fuel pump kick on when you turn the key to the run position for a few seconds?

Saturntech9
Nov 8, 2012.
Alright, I went through the pass lock sequence three times, then tried to start the car, no joy. The guage still reads empty, I did not hear anything from the fuel pump. I really don't remember if the security light was on with the old bcm, but I don't think it was.
I checked fuses and relays yesterday. One question, while doing the sequence, where the directions say to "Wait ten minutes" is the key supposed to remain in the on position? I figured that it did, otherwise you wouldn't know when the security light went out.

I did notice that after completing the third cycle, when I turned the key on, the security light did not come on until I engaged the starter.

Maybe I should try the sequence again?

Tiny
Aerospares
Nov 8, 2012.
Lets do this while cranking the engine see if you have power to both sides of the fuel pump fuse?

Saturntech9
Nov 8, 2012.
Okay, checked for power at fuse with key off, got 12v on right side of fuse socket. Cranking with meter across fuse socket, nothing.

Tiny
Aerospares
Nov 8, 2012.
I guess I'll perform the relearn procedure another time, see what happens.

Tiny
Aerospares
Nov 9, 2012.
Page 2 of 9