Question about 2000 Saturn L-Series
Hi, here are some possible solutions for you. When the heater was staying on, the relay was probably stuck on. This normally indicates the relay is shorted, but this can also be caused by the body control module. When it finally stopped, it could be that the relay burned open or the 30 amp IGN 3 fuse burned under the hood. What I suggest first is to check the fuse and replace it if burned. This will probably leave the fan on again, if it was burned. Next, pull the relay out of the socket in the interior fuse box--the fan should stop. Push the relay back in--does it click? If the relay doesn't click when pulled in and out but the fan goes on and off, the relay is shorted and needs to be replaced. I'm assuming your lower blower settings don't work either. Those are a different circuit. Check the 15 amp HVAC fuse under the hood for those. If that fuse is good, the resistor has likely failed. Sorry, but I don't know where the resistor is on your car. It will be somewhere between the motor and the switch, and it's mounted in the heater housing with wires coming out--some go to the motor and some to the control panel.Take it out and inspect for heat damage. If no heat damage, check it for continuity. It's also possible that the switch is bad, but that would not cause the blower to stay on.
Please let me know what you find out and I'll be happy to guide you through the troubleshooting.
Posted on Jan 03, 2011
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Posted on Jan 02, 2017
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