Fuel Gauge Faulty/Circuit Board Issue?

[tinaolszewski]

2004 Grand Prix GTP (3800 SC)

I LOVE this car but it's starting to nickel/dime me.

1. Indicator lights - seat belt light stays on/goes off. At times check engine comes on/goes off but dealer diags shows no issue with engine. Today ALL, yes ALL the indicator lights came on for 1-2 seconds and went off. I am assuming the whole board is bad. Thoughts?
2. Gas guage stopped reading properly. Usually stays at empty but will got up/down at times. Is it the fuel pump sender or part of the circuit board issue?

Is it something I can install/any instructions?
Thanks!

[rperry435]

Typical bad seat belt latch.. they have the airbag sensor built into them. That's more than likely your seat belt light issue.. you could always check the wiring make sure it was severed by the track. I've seen it a few times.

Your fuel gauge issue is also very common. Bad sending unit. Only an issue on every GM vehicle from the 90s to 00s

Did your gauges sweep when everything came on and went off? As if you just turned the ignition on?

Sent from my SPH-L710 using Tapatalk 2

[Fivefingerdeathpunch]

The fuel gauge fix is easy if your handy.

There are a few threads on it with info and a video on it..

[tinaolszewski]

Your exactly right, the guages did a sweep as they do on ignition. Then last night driving home the "system charge failure" went off 3 times. Just blinked off/on. Per the manual that will stay on and must be rest if its "real".

[tinaolszewski]

Thanks! If there are instructions I am game to try it.