P26xx fault codes
256 generic codes from P2600 to P26FF, with what each means.
- P2600 Coolant Pump A Control Circuit / Open
- P2601 Coolant Pump A Control Circuit Performance/Stuck Off
- P2602 Coolant Pump Control Circuit Open
- P2603 Coolant Pump Control Circuit Low
- P2604 Intake Air Heater A Circuit Range/Performance
- P2605 Intake Air Heater B Circuit/Open
- P2606 Intake Air Heater B Circuit Range/Performance
- P2607 Intake Air Heater B Circuit Low
- P2608 Intake Air Heater B Circuit High
- P2609 Intake Air Heater System Performance
- P260A PTO Control Circuit / Open
- P260B PTO Control Circuit Low
- P260C PTO Control Circuit High
- P260D PTO Engaged Lamp Control Circuit
- P260E Diesel Particulate Filter Regeneration Lamp Control Circuit
- P260F Evaporative System Monitoring Processor Performance
- P2610 ECM/PCM Internal Engine Off Timer Performance
- P2611 A/C Refrigerant Distribution Valve Control Circuit/Open
- P2612 A/C Refrigerant Distribution Valve A Control Circuit Low
- P2613 A/C Refrigerant Distribution Valve A Control Circuit High
- P2614 Camshaft Position Signal Output Circuit/Open
- P2615 Camshaft Position Signal Output Circuit Low
- P2616 Camshaft Position Signal Output Circuit High
- P2617 Crankshaft Position Signal Output Circuit/Open
- P2618 Crankshaft Position Signal Output Circuit Low
- P2619 Crankshaft Position Signal Output Circuit High
- P261A Coolant Pump B Control Circuit / Open
- P261B Coolant Pump B Control Circuit Performance/Stuck Off
- P261C Coolant Pump B Control Circuit Low
- P261D Coolant Pump B Control Circuit High
- P261E Coolant Pump B Control Circuit Stuck On
- P261F Coolant Pump A Control Circuit Stuck On
- P2620 Throttle Position Output Circuit/Open
- P2621 Throttle Position Output Circuit Low
- P2622 Throttle Position Output Circuit High
- P2623 Injector Control Pressure Regulator Circuit / Open
- P2624 Injector Control Pressure Regulator Circuit Low
- P2625 Injector Control Pressure Regulator Circuit High
- P2626 O2 Sensor Pumping Current Trim Circuit/Open (Bank 1 Sensor 1)
- P2627 O2 Sensor Pumping Current Trim Circuit Low (Bank 1 Sensor 1)
- P2628 O2 Sensor Pumping Current Trim Circuit High (Bank 1 Sensor 1)
- P2629 O2 Sensor Pumping Current Trim Circuit/Open (Bank 2 Sensor 1)
- P262A Fuel Injector - Pilot Injection Not Learned
- P262B Control Module Power Off Timer Performance
- P262C Sensor Reference Voltage G Circuit / Open
- P262D Sensor Reference Voltage G Circuit Low
- P262E Sensor Reference Voltage G Circuit High
- P262F Sensor Reference Voltage G Circuit Range/Performance
- P2630 O2 Sensor Pumping Current Trim Circuit Low (Bank 2 Sensor 1)
- P2631 O2 Sensor Pumping Current Trim Circuit High (Bank 2 Sensor 1)
- P2632 Fuel Pump B Control Circuit / Open
- P2633 Fuel Pump B Control Circuit Low
- P2634 Fuel Pump B Control Circuit High
- P2635 Fuel Pump A Low Flow / Performance
- P2636 Fuel Pump B Low Flow/Performance
- P2637 Torque Management Feedback Signal A
- P2638 Torque Management Feedback Signal A Range/Performance
- P2639 Torque Management Feedback Signal A Low
- P263A MIL Control Circuit Low
- P263B MIL Control Circuit High
- P263C Glow Plug Control Driver Performance
- P263D Reductant Heater Driver Performance
- P263E Glow Plug Control Module 1 Over Temperature
- P263F Glow Plug Control Module 2 Over Temperature
- P2640 Torque Management Feedback Signal A High
- P2641 Torque Management Feedback Signal B
- P2642 Torque Management Feedback Signal B Range/Performance
- P2643 Torque Management Feedback Signal B Low
- P2644 Torque Management Feedback Signal B High
- P2645 A Rocker Arm Actuator Control Circuit / Open Bank 1
- P2646 A Rocker Arm Actuator System Performance/Stuck Off Bank 1
- P2647 A Rocker Arm Actuator System Stuck On Bank 1
- P2648 A Rocker Arm Actuator Control Circuit Low Bank 1
- P2649 A Rocker Arm Actuator Control Circuit High Bank 1
- P264A A Rocker Arm Actuator Position Sensor Circuit Bank 1
- P264B A Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 1
- P264C A Rocker Arm Actuator Position Sensor Circuit Low Bank 1
- P264D A Rocker Arm Actuator Position Sensor Circuit High Bank 1
- P264E A Rocker Arm Actuator Position Sensor Circuit Intermittent/Erratic Bank 1
- P264F Engine Serial Number Not Programmed or Incompatible
- P2650 B Rocker Arm Actuator Control Circuit / Open Bank 1
- P2651 B Rocker Arm Actuator System Performance/Stuck Off Bank 1
- P2652 B Rocker Arm Actuator System Stuck On Bank 1
- P2653 B Rocker Arm Actuator Control Circuit Low Bank 1
- P2654 B Rocker Arm Actuator Control Circuit High Bank 1
- P2655 A Rocker Arm Actuator Control Circuit / Open Bank 2
- P2656 A Rocker Arm Actuator System Performance/Stuck Off Bank 2
- P2657 A Rocker Arm Actuator System Stuck On Bank 2
- P2658 A Rocker Arm Actuator Control Circuit Low Bank 2
- P2659 A Rocker Arm Actuator Control Circuit High Bank 2
- P265A B Rocker Arm Actuator Position Sensor Circuit Bank 1
- P265B B Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 1
- P265C B Rocker Arm Actuator Position Sensor Circuit Low Bank 1
- P265D B Rocker Arm Actuator Position Sensor Circuit High Bank 1
- P265E B Rocker Arm Actuator Position Sensor Circuit Intermittent/Erratic Bank 1
- P265F Variable A/C Compressor Control Circuit Range/Performance
- P2660 B Rocker Arm Actuator Control Circuit / Open Bank 2
- P2661 B Rocker Arm Actuator System Performance/Stuck Off Bank 2
- P2662 B Rocker Arm Actuator System Stuck On Bank 2
- P2663 B Rocker Arm Actuator Control Circuit Low Bank 2
- P2664 B Rocker Arm Actuator Control Circuit High Bank 2
- P2665 Fuel Shutoff Valve B Control Circuit / Open
- P2666 Fuel Shutoff Valve B Control Circuit Low
- P2667 Fuel Shutoff Valve B Control Circuit High
- P2668 Fuel Mode Indicator Lamp Control Circuit
- P2669 Actuator Supply Voltage B Circuit / Open
- P266A A Rocker Arm Actuator Position Sensor Circuit Bank 2
- P266B A Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 2
- P266C A Rocker Arm Actuator Position Sensor Circuit Low Bank 2
- P266D A Rocker Arm Actuator Position Sensor Circuit High Bank 2
- P266E A Rocker Arm Actuator Position Sensor Circuit Intermittent/Erratic Bank 2
- P266F A/C Refrigerant Distribution Valve A Control Circuit Driver Current/Temperature Too High
- P2670 Actuator Supply Voltage B Circuit Low
- P2671 Actuator Supply Voltage B Circuit High
- P2672 Injection Pump Timing Offset
- P2673 Injection Pump Timing Calibration Not Learned
- P2674 Injection Pump Fuel Calibration Not Learned
- P2675 Air Cleaner Inlet Control Circuit / Open
- P2676 Air Cleaner Inlet Control Circuit Low
- P2677 Air Cleaner Inlet Control Circuit High
- P2678 Coolant Degassing Valve Control Circuit / Open
- P2679 Coolant Degassing Valve Control Circuit Low
- P267A B Rocker Arm Actuator Position Sensor Circuit Bank 2
- P267B B Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 2
- P267C B Rocker Arm Actuator Position Sensor Circuit Low Bank 2
- P267D B Rocker Arm Actuator Position Sensor Circuit High Bank 2
- P267E B Rocker Arm Actuator Position Sensor Circuit Intermittent/Erratic Bank 2
- P267F Control Module Internal Temperature Sensor A Circuit Intermittent/Erratic
- P2680 Coolant Degassing Valve Control Circuit High
- P2681 Engine Coolant Bypass Valve Control Circuit / Open
- P2682 Engine Coolant Bypass Valve Control Circuit Low
- P2683 Engine Coolant Bypass Valve Control Circuit High
- P2684 Actuator Supply Voltage C Circuit / Open
- P2685 Actuator Supply Voltage C Circuit Low
- P2686 Actuator Supply Voltage C Circuit High
- P2687 Fuel Supply Heater Control Circuit / Open
- P2688 Fuel Supply Heater Control Circuit Low
- P2689 Fuel Supply Heater Control Circuit High
- P268A Fuel Injector Calibration Not Learned/Programmed
- P268B High Pressure Fuel Pump Calibration Not Learned/Programmed
- P268C Cylinder 1 Injector Data Incompatible
- P268D Cylinder 2 Injector Data Incompatible
- P268E Cylinder 3 Injector Data Incompatible
- P268F Cylinder 4 Injector Data Incompatible
- P2690 Cylinder 5 Injector Data Incompatible
- P2691 Cylinder 6 Injector Data Incompatible
- P2692 Cylinder 7 Injector Data Incompatible
- P2693 Cylinder 8 Injector Data Incompatible
- P2694 Cylinder 9 Injector Data Incompatible
- P2695 Cylinder 10 Injector Data Incompatible
- P2696 Injector Data Incompatible
- P2697 Exhaust Aftertreatment Fuel Injector A Circuit / Open
- P2698 Exhaust Aftertreatment Fuel Injector A Performance
- P2699 Exhaust Aftertreatment Fuel Injector A Circuit Low
- P269A Exhaust Aftertreatment Fuel Injector A Circuit High
- P269B Exhaust Aftertreatment Glow Plug Control Circuit / Open
- P269C Exhaust Aftertreatment Glow Plug Control Performance
- P269D Exhaust Aftertreatment Glow Plug Control Circuit Low
- P269E Exhaust Aftertreatment Glow Plug Control Circuit High
- P269F Exhaust Aftertreatment Glow Plug Circuit / Open
- P26A0 Exhaust Aftertreatment Glow Plug Performance
- P26A1 Exhaust Aftertreatment Glow Plug Circuit Low
- P26A2 Exhaust Aftertreatment Glow Plug Circuit High
- P26A3 Engine Coolant Bypass Valve A Range/Performance
- P26A4 Engine Coolant Bypass Valve A Position Sensor Circuit
- P26A5 Engine Coolant Bypass Valve A Position Sensor Circuit Range/Performance
- P26A6 Engine Coolant Bypass Valve A Position Sensor Circuit Low
- P26A7 Engine Coolant Bypass Valve A Position Sensor Circuit High
- P26A8 Engine Coolant Bypass Valve A Position Sensor Circuit Intermittent/Erratic
- P26A9 Engine Coolant Bypass Valve A Position Sensor Stop/Minimum Stop Performance
- P26AA Engine Coolant Bypass Valve A Position Sensor Maximum Stop Performance
- P26AB Engine Coolant Bypass Valve A Stuck/Open
- P26AC Engine Coolant Bypass Valve B Control Circuit / Open
- P26AD Engine Coolant Bypass Valve B Control Circuit Low
- P26AE Engine Coolant Bypass Valve B Control Circuit High
- P26AF Engine Coolant Bypass Valve B Stuck/Open
- P26B0 Engine Coolant Bypass Valve B Range/Performance
- P26B1 Engine Coolant Bypass Valve A Stuck Closed
- P26B2 Engine Coolant Bypass Valve B Stuck Closed
- P26B3 Fuel Shutoff Valve A Control Circuit Performance/Stuck Off
- P26B4 Fuel Shutoff Valve A Control Circuit Stuck On
- P26B5 Fuel Shutoff Valve B Control Circuit Performance/Stuck Off
- P26B6 Fuel Shutoff Valve B Control Circuit Stuck On
- P26B7 Engine Coolant Bypass Valve C Control Circuit / Open
- P26B8 Engine Coolant Bypass Valve C Control Circuit Low
- P26B9 Engine Coolant Bypass Valve C Control Circuit High
- P26BA Engine Coolant Bypass Valve C Stuck/Open
- P26BB Engine Coolant Bypass Valve C Range/Performance
- P26BC Engine Coolant Bypass Valve C Stuck Closed
- P26BD Engine Coolant Bypass Valve D Control Circuit / Open
- P26BE Engine Coolant Bypass Valve D Control Circuit Low
- P26BF Engine Coolant Bypass Valve D Control Circuit High
- P26C0 Engine Coolant Bypass Valve D Stuck/Open
- P26C1 Engine Coolant Bypass Valve D Range/Performance
- P26C2 Engine Coolant Bypass Valve D Stuck Closed
- P26C3 Internal Control Module Transmission Range Sensor Performance
- P26C4 Internal Control Module Clutch Pedal Performance
- P26C5 Exhaust Flow Control Valve A Control Circuit / Open
- P26C6 Exhaust Flow Control Valve A Control Circuit Low
- P26C7 Exhaust Flow Control Valve A Control Circuit High
- P26C8 Chassis Control Module 1 Requested MIL Illumination
- P26C9 Chassis Control Module 2 Requested MIL Illumination
- P26CA Engine Coolant Pump Control Circuit / Open
- P26CB Engine Coolant Pump Performance/Stuck Off
- P26CC Engine Coolant Pump Control Circuit Low
- P26CD Engine Coolant Pump Control Circuit High
- P26CE Engine Coolant Pump Overspeed/Air In System
- P26CF Engine Coolant Pump Control Module System Voltage
- P26D0 Engine Coolant Pump Control Module System Voltage Low
- P26D1 Engine Coolant Pump Control Module System Voltage High
- P26D2 Engine Coolant Pump Control Module Overtemperature
- P26D3 Engine Coolant Pump Supply Voltage Circuit
- P26D4 Engine Coolant Pump Supply Voltage Circuit Low
- P26D5 Engine Coolant Pump Supply Voltage Circuit High
- P26D6 Engine Coolant Pump Clutch Control Circuit / Open
- P26D7 Engine Coolant Pump Clutch Performance/Stuck Off
- P26D8 Engine Coolant Pump Clutch Stuck On
- P26D9 Engine Coolant Pump Clutch Control Circuit Low
- P26DA Engine Coolant Pump Clutch Control Circuit High
- P26DB Engine Sound Control A Circuit / Open
- P26DC Engine Sound Control A Circuit Low
- P26DD Engine Sound Control A Circuit High
- P26DE Engine Sound Control A Circuit Performance
- P26DF Sensor Power Supply D Circuit / Open
- P26E0 Sensor Power Supply D Circuit Low
- P26E1 Sensor Power Supply D Circuit High
- P26E2 Fuel Mode Indicator Lamp Control Circuit Low
- P26E3 Fuel Mode Indicator Lamp Control Circuit High
- P26E4 Starter Relay B Circuit
- P26E5 Starter Relay B Circuit Low
- P26E6 Starter Relay B Circuit High
- P26E7 Actuator Supply Voltage D Circuit / Open
- P26E8 Actuator Supply Voltage D Circuit Low
- P26E9 Actuator Supply Voltage D Circuit High
- P26EA Fuel Pump Control Module B
- P26EB Alternative Fuel Control Module System Voltage
- P26EC Engine Sound Control B Circuit / Open
- P26ED Engine Sound Control B Circuit Low
- P26EE Engine Sound Control B Circuit High
- P26EF Engine Sound Control B Circuit Performance
- P26F0 Starter Relay A Stuck On
- P26F1 Starter Relay A Stuck Off
- P26F2 Starter Relay B Stuck On
- P26F3 Starter Relay B Stuck Off
- P26F4 Coolant Pump C Control Circuit / Open
- P26F5 Coolant Pump C Control Circuit Low
- P26F6 Coolant Pump C Control Circuit High
- P26F7 Coolant Pump C Supply Voltage Circuit
- P26F8 Coolant Pump C Stuck/Stalled
- P26F9 Coolant Pump C Control Module Overtemperature
- P26FA Coolant Pump C Overspeed/Air in System
- P26FB EGR Cooler Bypass Control Stuck Closed Bank 1
- P26FC EGR Cooler Bypass Control Stuck Closed Bank 2
- P26FD A/C Compressor Internal Control Module Performance
- P26FE Exhaust Flow Control Valve A Control Performance
- P26FF Auto Configuration Throttle Input Not Present Bank 2