P06xx · Computer and output circuits

P063C Generator Voltage Sense Circuit A Low Powertrain P063D Generator Voltage Sense Circuit A High Powertrain P063E Auto Configuration Throttle Input Not Present Bank 1 Powertrain P063F Auto Configuration Engine Coolant Temperature Input Not Present Powertrain P0640 Intake Air Heater Control Circuit Powertrain P0641 Sensor Reference Voltage 'A' Circuit/Open Powertrain P0642 Sensor Reference Voltage 'A' Circuit Low Powertrain P0643 Sensor Reference Voltage 'A' Circuit High Powertrain P0644 Driver Display Serial Communication Circuit Powertrain P0645 A/C Clutch Relay Control Circuit Powertrain P0646 A/C Clutch Relay Control Circuit Low Powertrain P0647 A/C Clutch Relay Control Circuit High Powertrain P0648 Immobilizer Lamp Control Circuit Powertrain P0649 Speed Control Lamp Control Circuit Powertrain P064A Fuel Pump Control Module A Powertrain P064B PTO Control Module Powertrain P064C Glow Plug Control Module 1 Powertrain P064D Internal Control Module O2 Sensor Processor Performance Bank 1 Powertrain P064E Internal Control Module O2 Sensor Processor Performance Bank 2 Powertrain P064F Unauthorized Software/Calibration Detected Powertrain P0650 Malfunction Indicator Lamp (MIL) Control Circuit Malfunction Powertrain P0651 Sensor Reference Voltage 'B' Circuit/Open Powertrain P0652 Sensor Reference Voltage 'B' Circuit Low Powertrain P0653 Sensor Reference Voltage 'B' Circuit High Powertrain P0654 Engine RPM Output Circuit Powertrain P0655 Engine Hot Lamp Output Control Circuit Powertrain P0656 Fuel Level Output Circuit Powertrain P0657 Actuator Supply Voltage 'A' Circuit/Open Powertrain P0658 Actuator Supply Voltage 'A' Circuit Low Powertrain P0659 Actuator Supply Voltage 'A' Circuit High Powertrain P065A Generator System Performance Powertrain P065B Generator A Control Circuit Range/Performance Powertrain P065C Generator A Mechanical Performance Powertrain P065D Reductant System Malfunction Lamp Control Circuit Powertrain P065E Intake Manifold Tuning Valve Performance Bank 1 Powertrain P065F Intake Manifold Tuning Valve Performance Bank 2 Powertrain P0660 Intake Manifold Tuning Valve Control Circuit/Open (Bank 1) Powertrain P0661 Intake Manifold Tuning Valve Control Circuit Low (Bank 1) Powertrain P0662 Intake Manifold Tuning Valve Control Circuit High (Bank 1) Powertrain P0663 Intake Manifold Tuning Valve Control Circuit/Open (Bank 2) Powertrain P0664 Intake Manifold Tuning Valve Control Circuit Low (Bank 2) Powertrain P0665 Intake Manifold Tuning Valve Control Circuit High (Bank 2) Powertrain P0666 PCM/ECM/TCM Internal Temperature Sensor Circuit Powertrain P0667 PCM/ECM/TCM Internal Temperature Sensor Range/Performance Powertrain P0668 PCM/ECM/TCM Internal Temperature Sensor Circuit Low Powertrain P0669 PCM/ECM/TCM Internal Temperature Sensor Circuit High Powertrain P066A Cylinder 1 Glow Plug Control Circuit Low Powertrain P066B Cylinder 1 Glow Plug Control Circuit High Powertrain P066C Cylinder 2 Glow Plug Control Circuit Low Powertrain P066D Cylinder 2 Glow Plug Control Circuit High Powertrain P066E Cylinder 3 Glow Plug Control Circuit Low Powertrain P066F Cylinder 3 Glow Plug Control Circuit High Powertrain P0670 Glow Plug Module Control Circuit Powertrain P0671 Cylinder 1 Glow Plug Circuit Powertrain P0672 Cylinder 2 Glow Plug Circuit Powertrain P0673 Cylinder 3 Glow Plug Circuit Powertrain P0674 Cylinder 4 Glow Plug Circuit Powertrain P0675 Cylinder 5 Glow Plug Circuit Powertrain P0676 Cylinder 6 Glow Plug Circuit Powertrain P0677 Cylinder 7 Glow Plug Circuit Powertrain