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03 December, 2025

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 2557 PID: SID 057 SPN: 697 FMI: 3 Auxiliary PWM Driver 1 – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the analog torque circuit.

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: 2558 PID: SID 057 SPN: 697 FMI: 4 Auxiliary PWM Driver 1 – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the analog torque circuit.

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: 256 PID: 171 SPN: 171 FMI: 4 Ambient Air Temperature Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the ambient air temperature circuit.

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: 2634 PID: SID 027 SPN: 641 FMI: 12 VGT Actuator Controller – Bad Intelligent Device or Component. An internal error has been detected by the smart VGT controller.

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: 2635 PID: SID 027 SPN: 641 FMI: 11 VGT Actuator Driver Circuit – Condition Exists. A calibration mismatch between the VGT actuator and the ECM has been 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: 2636 PID: SID 027 SPN: 641 FMI: 9 VGT Actuator Driver Circuit – Abnormal Update Rate. No communications on the J1939 data link between the engine ECM and the smart VGT controller.

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

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