This clutch fan has 5 wires.
2003 gmc envoy cooling fan speed sensor circuit.
P0526 gmc meaning the powertrain control module uses the cooling fan speed signal in order to determine the actual fan speed in relation to the desired fan speed the pcm uses the cooling fan speed signal in order to reduce the cooling fan noise and in order to maintain the powertrain cooling requirements.
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This is built into the fan clutch.
Additionally many vehicles have multi speed fans requiring as many as three fan speed relays for low medium and high.
1 answer service engine light is on and code p0526.
Open the hood and do a visual inspection.
Gmc envoy code p0526.
2004 05 buick rainiers and gmc envoy xuvs.
The pcm supplies power and ground to the clutch hall effect sensor of the cooling fan clutch.
The p0526 cooling fan speed sensor circuit problem appears because of damaged wires in the cooling fan harness.
This diagnostic trouble code dtc is a generic obd ii powertrain code.
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It is considered generic because it applies to all makes and models of vehicles 1996 newer although specific repair steps may vary depending on the model.
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The fan that is not in front of the air conditioning condenser is the main cooling fan and the one to concentrate on initially.
Common mistakes when diagnosing the p0526 code in some cases a reoccurring p0526 code is due to a mechanic replacing the cooling fan motors without performing a more thorough diagnosis.
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.
I suggest replace the sensor.
2005 gmc envoy denalis envoy xl denalis.
If the code returns they have successfully diagnosed a larger issue with the fan speed sensor circuit and should move on to other repairs.
Aug 18 2010 2003 gmc envoy.
The damage occurs because the harness pulls out of its plastic protective sleeve exposing the insulation to the sharp edges of the sleeve.
Its the cooling fan speed sensor that needs to be replaced.
How to troubleshoot an electronic clutch fan circuit on an olds bravada or chevy blazer with a 4 2l engine.
