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03 December, 2025

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 241 PID: 84 SPN: 84 FMI: 2 Wheel-Based Vehicle Speed – Data Erratic, Intermittent, or Incorrect. The ECM lost the vehicle speed signal.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable...

03 December, 2025

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 242 PID: 84 SPN: 84 FMI: 10 Wheel-Based Vehicle Speed Sensor Circuit Tampering Has Been Detected – Abnormal Rate of Change. Signal indicates an intermittent connection or VSS tampering.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable...

03 December, 2025

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 2448 PID: SPN: 111 FMI: 1 Coolant Level – Data Valid but Below Normal Operational Range – Least Severe Level. Low engine coolant level detected.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable...

03 December, 2025

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 2449 PID: SID 027 SPN: 641 FMI: 13 VGT Actuator Controller – Out of Calibration. The VGT has failed the automatic calibration procedure at initial key-ON.

Verify the ECM calibration is correct. Check the calibration revision history found on QuickServe™ Online for applicable fixes to the...

03 December, 2025

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 245 PID: SID 033 SPN: 647 FMI: 4 Fan Control Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the fan control circuit when commanded ON.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable...

03 December, 2025

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 2451 PID: SPN: 2789 FMI: 0 Turbocharger Turbine Inlet Temperature (Calculated) – Data Valid but Above Normal Operational Range – Moderately Severe Level.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe™ Online for applicable...

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