Volvo All Engines (2010 Emissions) Fault Code: SPN 975 FMI 3 PID: Estimated Percent Fan Speed
The auxiliary fan provides extra engine cooling based on requests from the engine control module (ECM)
Conditions for diagnostic trouble code (DTC):
1) Engine running
2) The voltage at pin A14.EA:35 is more than 7.8?V
Observable symptoms
1) Fan noise
2) The fan will either be fully engaged or fully disengaged. Engaging and disengaging will however take some time.
3) High fuel consumption
Probable cause
1) Fan speed sensor
2) Wiring harness
3) Connector
4) Engine control module (ECM)
![Magic Tuner [paccar, Maxxforce, Detroit, Caterpillar, Delete]](https://www.ecuforcetruck.com/wp-content/uploads/2021/10/1-300x300.png)
![International Truck ISIS - Oncommand Service Information Q4.2020 [04.2020]](https://www.ecuforcetruck.com/wp-content/uploads/2022/01/OnCommand-2020-1-300x300.png)
Related products
-
-
Allison 1000 & 2000 Gen 5 Fault Code:U0073 CAN Communication Bus 1 Off
1000 & 2000 Gen 5 -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Volvo All Engines (2013 Emissions) Fault Code: U300046 PID: EMS Electronic Control Unit
All Engines (2013 Emissions) -
Volvo All Engines (2013 Emissions) Fault Code: P04007C PID: EMS Exhaust Gas Recirculation “A” Flow
All Engines (2013 Emissions) -
-
-
-
CAT 3406E (Prefix 1MM or 2WS) Fault Code: 68 PID: SPN: 191 FMI: 7 Transmission Not Responding
3406E (Prefix 1MM or 2WS) -
-
-
-
