Volvo All Engines (2010 Emissions) Fault Code: SPN 171 FMI 12 PID: 171 Ambient Air Temperature

Category All Engines (2010 Emissions) Tags 12, 171, 2010, Air, All, Ambient, CodeSPN, Emissions, Engines, Fault, FMI, PID171, Temperature, Volvo

The ambient air temperature signal is sent to the instrument cluster module. The instrument cluster module then transmits the ambient air temperature data to the Engine Control Module (ECM) via the J1939 data lines.

Conditions for diagnostic trouble code (DTC):
1) Communications error

Probable cause
1) Instrument cluster
2) Ambient air temperature sensor

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Volvo All Engines (2010 Emissions) Fault Code: SPN 171 FMI 12 PID: 171 Ambient Air Temperature

CAT ET 2026 Diagnostic Software

DETROIT DIESEL DIAGNOSTIC LINK 8.23 SP2 2026

DETROIT DIESEL DIAGNOSTIC LINK DDDL 8.20 SP1 2025

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Cummins ISL CM850 (2003-06) Fault Code: 2385 (ISC) PID: SID 27 SPN: 641 FMI: 3 VGT Actuator – Voltage Above Normal or Shorted to High Source. Open circuit or high voltage detected at turbocharger control valve circuit.

Detroit DD13 EPA07 (2007-09) Fault Code: SPN 1172 FMI 2 (MCM) Coolant Temperature/Compressor Inlet Temperature Plausibility Error

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PACCAR MX (2004 Emissions) Fault Code: P1303 Cylinder 3 – Intermittent Misfire

Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3238 FMI 2 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Failure to Activate

Cummins ISB4.5 CM2150 Fault Code: 3525 PID: SPN: 84 FMI: 19 Wheel-Based Vehicle Speed – Received Network Data In Error.

Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 195 (3 Wire) PID: PID 111 SPN: 111 FMI: 3 Coolant Level Sensor 1 Circuit- Voltage Above Normal or Shorted to High Source

Cummins ISX12 CM2250 (2010-12) Fault Code: 3679 PID: SPN: 3361 FMI: 11 Aftertreatment Diesel Exhaust Fluid Dosing Unit- Root Cause Not Known

Volvo All Engines (2017 Emissions) Fault Code: P249F00 PID: EMS Excessive Time To Enter Closed Loop DPF Regeneration Coil

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Cummins ISX12 CM2250 (2010-12) Fault Code: 1669 (3 Wire) PID: 203D SPN: 1761 FMI: 3 Aftertreatment 1 Diesel Exhaust Fluid Tank Level Sensor Circuit- Voltage Above Normal or Shorted to High Source

Detroit DD15 GHG14 (2014-16) Fault Code: SPN 175 FMI 15 (MCM) Oil Temperature High Pre-Warning

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Volvo All Engines (2010 Emissions) Fault Code: SPN 177 FMI 16 PID: Transmission Oil Temperature – Moderately Severe Level

Detroit DD16 EPA10 (2010-13) Fault Code: SPN 723 FMI 4 (MCM) Short to Ground

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Volvo All Engines (2010 Emissions) Fault Code: SPN 171 FMI 12 PID: 171 Ambient Air Temperature

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

Detroit Diesel Diagnostic Link DDDL 8.0 PRO PROFESSIONAL Software trucks

Navistar Engine Diagnostics (NEDS) 2023

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