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What does fan rationality check mean?

What does fan rationality check mean?

Hear this out loudPauseTable of Contents. Error Code P0483 is defined as Cooling Fan Rationality Check Malfunction. This means there’s a voltage reading that shows the cooling fan is not responding; even when it is commanded to turn on or off.

What is problem with p0526 cooling fan speed sensor code?

GM has issued a service bulletin to address a P0526 Cooling fan speed sensor circuit trouble code on the following vehicles: The P0526 Cooling fan speed sensor circuit problem appears because of damaged wires in the cooling fan harness.

When is the p0526 GMC code detected?

When is the P0526 GMC 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. 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.

What is the diagnostic code for fan speed sensor circuit?

P0526 is a diagnostic trouble code (DTC) for “Fan Speed Sensor Circuit”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

How does the fan speed sensor work on a car?

The sensor is used to determine if the fan is running on a fan clutch equipped vehicle, or used to verify fan speed commanded by the Powertrain Control Module (PCM) or Engine Control Module (ECM) matches the actual fan speed detected on an electric fan equipped vehicle.

GM has issued a service bulletin to address a P0526 Cooling fan speed sensor circuit trouble code on the following vehicles: The P0526 Cooling fan speed sensor circuit problem appears because of damaged wires in the cooling fan harness.

When is the P0526 GMC 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. 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.

P0526 is a diagnostic trouble code (DTC) for “Fan Speed Sensor Circuit”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

The sensor is used to determine if the fan is running on a fan clutch equipped vehicle, or used to verify fan speed commanded by the Powertrain Control Module (PCM) or Engine Control Module (ECM) matches the actual fan speed detected on an electric fan equipped vehicle.

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Ruth Doyle