3.6L - DTCS P0622 To P0698

• DTC Troubleshooting
  • P0622 Generator Field Control Circuit/Open
    • Notes
    • Theory Of Operation
    • When Monitored And Set Conditions
    • Diagnostic Test
  • P0627 Fuel Pump Control Circuit Open
    • Notes
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0628 Fuel Pump Control Circuit Low
    • Notes
    • Known Issues - FPCM System
    • FPCM System Operation
    • Functional Description- Fuel Pump Control Module (FPCM) And Fuel Pump
    • Functional Description - Powertrain Control Module (Pcm)
    • Technical Data - Fuel System Pressure Specifications
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Overview - Fuel Pump Control Module
    • Preliminary Diagnostic Checks
    • Check For An Active Or Intermittent Condition
    • Diagnostic Test - Fuel Pump PWM Control Circuit Faults (P0628, P0629, P1205, P120B, P2633, P2634)
    • Diagnostic Test - Complete Fuel Pump Control Module System Testing (Not DTC Specific)
    • Powertrain Verification Test
  • P0629 Fuel Pump Control Circuit High
    • Notes
    • Known Issues - FPCM System
    • FPCM System Operation
    • Functional Description- Fuel Pump Control Module (FPCM) And Fuel Pump
    • Functional Description - Powertrain Control Module (Pcm)
    • Technical Data - Fuel System Pressure Specifications
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Overview - Fuel Pump Control Module
    • Preliminary Diagnostic Checks
    • Check For An Active Or Intermittent Condition
    • Diagnostic Test - Fuel Pump PWM Control Circuit Faults (P0628, P0629, P1205, P120B, P2633, P2634)
    • Diagnostic Test - Complete Fuel Pump Control Module System Testing (Not DTC Specific)
    • Powertrain Verification Test
  • P062A Fuel Pump Control Performance
    • Notes
    • Known Issues - FPCM System
    • FPCM System Operation
    • Functional Description- Fuel Pump Control Module (FPCM) And Fuel Pump
    • Functional Description - Powertrain Control Module (Pcm)
    • Technical Data - Fuel System Pressure Specifications
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Overview - Fuel Pump Control Module
    • Preliminary Diagnostic Checks
    • Check For An Active Or Intermittent Condition
    • Diagnostic Test - Fuel Pump Control Performance Faults (P025B, P027B, P062A, P064A, P26EA)
    • Powertrain Verification Test
  • P062C ETCLEVEL 2 Mph Performance
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0630 VIN Not Programmed In Pcm
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0632 Odometer Not Programmed In Pcm
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0633 Skim Secret Key Not Stored In Pcm
    • Theory Of Operation
    • Diagnostic Overview - Skim Secret Key Not Stored In Pcm (P0633)
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P063A Generator Voltage Sense Circuit
    • Notes
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0642 Sensor Reference Voltage 1 Circuit Low
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0643 Sensor Reference Voltage 1 Circuit High
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P064A Fuel Pump Control Module 1
    • Notes
    • Known Issues - FPCM System
    • FPCM System Operation
    • Functional Description- Fuel Pump Control Module (FPCM) And Fuel Pump
    • Functional Description - Powertrain Control Module (Pcm)
    • Technical Data - Fuel System Pressure Specifications
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Overview - Fuel Pump Control Module
    • Preliminary Diagnostic Checks
    • Check For An Active Or Intermittent Condition
    • Diagnostic Test - Fuel Pump Control Performance Faults (P025B, P027B, P062A, P064A, P26EA)
    • Powertrain Verification Test
  • P0645 A/C Control Circuit/Open
    • Notes
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0652 Sensor Reference Voltage 2 Circuit Low
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0653 Sensor Reference Voltage 2 Circuit High
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0685 ASD / Main Control Circuit
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0688 ASD / Main Sense Circuit
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0698 Sensor Reference Voltage 3 Circuit Low
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test