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Old 12-28-2019, 12:42 PM   #9
fdryer
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Join Date: Jan 2006
Location: NYC
Posts: 43,512
 

2003 L-Series 3.0L Sedan
Default Re: Dreaded P0480 and P0481 code

1- what does your reader display for cold and hot engine temperatures?

2- unless your dvm can read in low ohms, fan resistors (ceramic type) are less than 5 ohms. To test dvm accuracy when measuring low resistance items, short the two probes together to duplicate a dead short. The display should read 0.00 or at least close to it (0.1). Auto ranging meters automatically move the decimal point. Others require selecting a range. If your meter has a range of resistance, select the lowest range and measure again, beginning with probes touching together for a baseline value before measuring a resistor.

3- I'm mistaken about a fan control module. Some Saturns have fan control modules - electronics with relays on a circuit board encased in a weather proof plastic box near the battery. Others just use the engine fuse panel with relays. In both cases, the ecm or pcm controls these relays to select fan speeds. Your Vue have fan relays in the engine bay fuse panel.

Here's a link; http://www.saturnfans.com/forums/sho...d.php?t=152681

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