Code p1481

170

Asked by Dec 28, 2015 at 06:06 PM about the 2002 Chevrolet TrailBlazer LTZ 4WD

Question type: Maintenance & Repair

I got check engine light on and poped code
p1481 fan speed circuit sensor does that
mean that i have a bad fan clutch since mine
is an electronic fan clutch

7 Answers

65,865

Chevrolet p1481: Faulty Fan Clutch Assembly - Fan Clutch Assembly harness is open or shorted - Fan Clutch Assembly circuit poor electrical connection

3 out of 3 people think this is helpful.
170

So do i just need to get a new fan clutch installed in it

1 out of 1 people think this is helpful.
65,865

I wouldn't think so at this point. I would run a direct power lead to the fan to see if it works first. Or first look at the wires to see if any visually are bad, and check the plugin, take it apart and see if there is corrosion on the terminals. Test for power at the plugin.

1 out of 1 people think this is helpful.
170

I already checked wires checked plugs for corrosion and everything. Looks good and also wen i turn car on the fan blows hard and makes a loud buzzing sound

2 out of 2 people think this is helpful.
65,025

Sounds like the fan clutch is locked up and spinning faster than it should. That will set this trouble code as well as a fan that's spinning too slowly. Replace the fan clutch and reset (clear) the PCM (Computer). HTH. -Jim

65,865

Thanks there Js08016...

1 out of 1 people think this is helpful.
65,025

You're welcome, Rowefast. Glad to help. - Jim

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