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P0526 GMC

P0526 GMC - Cooling Fan Speed Sensor Circuit

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P0526 GMC Comments |  Add Comment
Possible causes
- Cooling fan harness and connector
- Faulty cooling fan
Help with Possible causes What does this mean?
When is the code detected?
The P0526 code is detected when the PCM has detected a loss of cooling fan speed signal and the condition is present for at least 11 seconds.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine overheating
P0526 GMC Description

The powertrain control module (PCM) 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. The PCM supplies power and ground to the clutch hall effect sensor of the cooling fan clutch. The hall effect sensor returns a signal pulse through the speed signal circuit in response to the reluctor track, which is located inside the fan clutch. If during operation, the PCM detects a loss of the cooling fan speed signal, DTC P0526 will set.

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GMC Technical Service Bulletins for P0526 code
2002 GMC ENVOY Engine And Engine Cooling:engine Details
2003 GMC ENVOY Engine And Engine Cooling:engine Details
2004 GMC ENVOY Engine And Engine Cooling:engine Details
2005 GMC ENVOY Engine And Engine Cooling:engine Details
2006 GMC ENVOY Engine And Engine Cooling:engine Details
More Bulletins Help with Technical Service Bulletins What does this mean?
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