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SPN 627
SPN Descriptor
SPN 627 FMI 15: System Voltage Data Valid But Above Normal Range-Least
Severe Level
SPN 627 FMI 17: System Voltage Data Valid But Below Normal Range-Least
Severe Level
SPN 630, 65580, 65581, 65582
SPN Descriptors
SPN 630 FMI 13: Cal Memory Out of Calibration
SPN 65580 FMI 12: CPU Bad Intelligent Device or Component
SPN 65581 FMI 12: MHC Failure Bad Intelligent Device or Component
SPN 65582 FMI 12: NV RAM Failure Data Erratic, Intermittent or Incorrect
SPN 636
SPN Descriptors
SPN 636 FMI 2: Crankshaft Position (CKP) Sensor Circuit Data Erratic,
Intermittent or Incorrect
SPN 636 FMI 8: Crankshaft Position (CKP) Sensor Signal Abnormal Frequency or
Pulse Width
SPN 651, 652, 653 or 654
SPN Descriptors
SPN 651 FMI 3: Fuel Injector 1 Voltage Above Normal or Shorted High
SPN 651 FMI 5: Fuel Injector 1 Current Below Normal or Open Circuit
SPN 652 FMI 3: Fuel Injector 2 Voltage Above Normal or Shorted High
SPN 652 FMI 5: Fuel Injector 2 Current Below Normal or Open Circuit
SPN 653 FMI 3: Fuel Injector 3 Voltage Above Normal or Shorted High
SPN 653 FMI 5: Fuel Injector 3 Current Below Normal or Open Circuit
SPN 654 FMI 3: Fuel Injector 4 Voltage Above Normal or Shorted High
SPN 654 FMI 5: Fuel Injector 4 Current Below Normal or Open Circuit
SPN 65541, 65542, 65543 or 65544
SPN Descriptors
SPN 65541 FMI 4: Ignition Coil 1 Voltage Below Normal or Shorted Low
SPN 65541 FMI 5: Ignition Coil 1 Current Below Normal or Open Circuit
SPN 65542 FMI 4: Ignition Coil 2 Voltage Below Normal or Shorted Low
SPN 65542 FMI 5: Ignition Coil 2 Current Below Normal or Open Circuit
SPN 65543 FMI 4: Ignition Coil 3 Voltage Below Normal or Shorted Low
SPN 65543 FMI 5: Ignition Coil 3 Current Below Normal or Open Circuit
SPN 65544 FMI 4: Ignition Coil 4 Voltage Below Normal or Shorted Low
SPN 65544 FMI 5: Ignition Coil 4 Current Below Normal or Open Circuit
SPN 65559
SPN Descriptors
SPN 65559 FMI 11: CAN Bus Hardware Fault Root Cause Unknown
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