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16 August, 2025

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Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 4952 PID: SPN: 6655 FMI: 4 Maintain ECU Power Lamp Circuit- Voltage Below Normal or Shorted to Low Source

Circuit DescriptionThe Engine Control Module (ECM) requires battery power when the keyswitch is ON and for a period of time...

16 August, 2025

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Circuit DescriptionThe variable geometry turbocharger (VGT) is electronically activated by the VGT actuator. The VGT actuator is a smart device...

16 August, 2025

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Circuit DescriptionThe variable geometry turbocharger (VGT) is electronically activated by the VGT actuator. The VGT actuator is a smart device...

16 August, 2025

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Circuit DescriptionThe sensor supply 6 circuit of the engine control module (ECM) is a dedicated (+) 5-VDC supply for the...

16 August, 2025

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Circuit DescriptionThe sensor supply 6 circuit of the engine control module (ECM) is a dedicated (+) 5-VDC supply for the...

16 August, 2025

0 comments

Circuit DescriptionThe variable geometry turbocharger (VGT) is electronically activated by the VGT actuator. The VGT actuator is a smart device...