Saturn Repair Problems? Ask a Mechanic for Answers ASAP
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
You will have 2 pins that are hot at the cool fan low relay.This is battery voltage fed from the cool low fuse.One pin will be a ground from the ECM controlled when the temp hits certain temps usually around 212 should have kicked on the low fan speed already.Below is the diagnostic procedure for the code set here.If you can follow this procedure this will help in pinpointing the fault.
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O.k.,let me know what you come up with here when your ready.
Has anyone altered the wiring at all in your vehicle that you know of and were the pull aparts wired the same way?
What liter engine is in this model here?
Here is what I see.
The ECM sends a signal to the cool low and cool high relay to command them on.This is a ground signal.At the low relay this is a dark blue wire.At the high relay this is a dark green wire.These are separate circuits from the ECM.
At both the lo and high relays you should have 2 terminals that have battery voltage at all times key on or off.This comes from the cool lo 20 amp fuse to the lo relay and the cool hi 40 amp fuse to the cool hi relay.
The last terminal which is a light blue wire from the cool high feeds direct from the cool high relay to the cooling fan.From the low relay it is a gray wire that runs to the cooling fan resistor,from this resistor it turns into a light blue wire to the cooling fan.
This info here may help you diagnose the fault.
Let me know if you need anything else and feel free to rate my help here as this is how I receive credit for my time.Your 5 star rating is appreciated
That is odd.Is this the same way the other models were set up as well?
This is just Odd.I dont know why the ECM ground wire is not present on all of these models here.It should be.I dont know if you can see this diagram but it leads from connector C1 at the ECM to the relay and is a dark blue wire that sends a ground signal from the ECM.
I apologize as that was the best I could do.It is circuit 473 which is a dark blue wire that leads from connector C1 terminal 57 at the ECM to the missing terminal at the low relay.You might check at the ECM for this wire.If this wire is not in terminal 57 at all then for some reason GM made the vehicle diagrams to have low speed but left out low speed fan control which is really hard to understand.If the wire is in place you might trace it and see if it was disconnected from the relay near the relay box itself or try adding this wire and see if it operates then.This is something I would do to try and figure out why this wire is not present.
Sounds good.I hope you can get this resolved with ease.
It sounds like a false code setting.Like the computer is programmed for a V6 for the fan control when it isnt.I would suggest since these other 4 cylinders are the same as yours to have the programming checked in the engine computer to see if it is incorrect.Usually a GM dealer has to do this.
I apologize for the delay as I was out of town.
Let me know what you come up with here and if you need anything else.
If you swap out the ecm it will have to be programmed to work in your model here including calibrations to operate the vehicle properly and the theft calibrations to allow starting of the vehicle.This usually has to be done by a GM dealer.