Volvo All Engines (2010 Emissions) Fault Code: SPN 975 FMI 3 PID: Estimated Percent Fan Speed

Category All Engines (2010 Emissions) Tags 2010, 3, 975, All, CodeSPN, Emissions, Engines, Estimated, Fan, Fault, FMI, Percent, PID, Speed, Volvo

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)

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Volvo All Engines (2010 Emissions) Fault Code: SPN 975 FMI 3 PID: Estimated Percent Fan Speed

CAT ET 2026 Diagnostic Software

DETROIT DIESEL DIAGNOSTIC LINK 8.23 SP2 2026

DETROIT DIESEL DIAGNOSTIC LINK DDDL 8.20 SP1 2025

John Deere Service Advisor 5.4.44 2025 (AG & CF) | Nexiq USB Link 3 Compatible

Diamond Logic Builder DLB 2019 Database 2019

Cumminmms Insiter 8.9 Diagnostic Software

JPRO 2022 v3 ( 1 PC )

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Volvo All Engines (2010 Emissions) Fault Code: SPN 975 FMI 3 PID: Estimated Percent Fan Speed

CAT ET 2026 Diagnostic Software

DETROIT DIESEL DIAGNOSTIC LINK 8.23 SP2 2026

DETROIT DIESEL DIAGNOSTIC LINK DDDL 8.20 SP1 2025

John Deere Service Advisor 5.4.44 2025 (AG & CF) | Nexiq USB Link 3 Compatible

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Cumminmms Insiter 8.9 Diagnostic Software

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Volvo All Engines (2017 Emissions) Fault Code: P20A500 PID: ACM Reductant Purge Control Valve Stuck Closed

Cummins ISX12 CM2250 (2010-12) Fault Code: 3569 PID: SID 254 SPN: 3362 FMI: 7 Aftertreatment Diesel Exhaust Fluid Dosing Unit input Lines- Mechanical System Not Responding or Out of Adjustment

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