Volvo All Engines (2013 Emissions) Fault Code: P052612 PID: EMS Fan Speed Sensor Circuit

Volvo All Engines (2013 Emissions) Fault Code: P052612 PID: EMS Fan Speed Sensor Circuit

Circuit description
The auxiliary fan provides extra engine cooling based on requests from the engine control module (ECM)

Conditions for diagnostic trouble code (DTC)
Engine running
The voltage at pin A14.EA:35 is more than 65?% battery voltage

Observable symptoms
Fan noise
The fan will either be fully engaged or fully disengaged. Engaging and disengaging will however take some time.
High fuel consumption
Engine cooling fan, does not reach expected speed

Probable cause
1) Fan speed sensor
2) Wiring harness
3) Connector
4) Engine control module (ECM)