P2500 – P2BAE Codes

 

Powertrain Codes
Diagnostic_code_breakdown
P0xxx – Generic (SAE)
P1xxx – Manufacturer Specific
P2xxx – Generic (SAE)
P30xx-P33xx – Manufacturer Specific
P34xx-P39xx – Generic (SAE)

Remember:
• Visual inspections are important!
• Problems with wiring and connectors are common, especially for intermittent faults.
• Mechanical problems (vacuum leaks, binding or sticking linkages, etc.) can make a good sensor look bad to the computer.
• Incorrect information from a sensor may cause the computer to control the engine in the wrong way. Faulty engine operation might even make the computer show a known good sensor as being bad!

Note: Coding runs numerical (1-9) , then HEX values (A-F), followed by numerical values, for example P0001, P0002, P0003 – P0009, P000A, P000B  – P000F, P0010 etc.
This pattern of numerical and HEX follows 10’s and then 100’s so P0099 is followed by P009A which is followed by P009B etc

P2500 Generator Lamp/L-Terminal Circuit Low
P2501 Generator Lamp/L-Terminal Circuit High
P2502 Charging System Voltage
P2503 Charging System Voltage Low
P2504 Charging System Voltage High
P2505 ECM / PCM Power Input Signal
P2506 ECM / PCM Power Input Signal Range/Performance
P2507 ECM / PCM Power Input Signal Low
P2508 ECM / PCM Power Input Signal High
P2509 ECM / PCM Power Input Signal Intermittent
P250A Engine Oil Level Sensor Circuit
P250B Engine Oil Level Sensor Circuit Range/Performance
P250C Engine Oil Level Sensor Circuit Low
P250D Engine Oil Level Sensor Circuit High
P250E Engine Oil Level Sensor Circuit Intermittent/Erratic
P250F Engine Oil Level Too Low
P2510 ECM / PCM Power Relay Sense Circuit Range/Performance
P2511 ECM / PCM Power Relay Sense Circuit Intermittent
P2512 Event Data Recorder Request Circuit / Open
P2513 Event Data Recorder Request Circuit Low
P2514 Event Data Recorder Request Circuit High
P2515 A/C Refrigerant Pressure Sensor B Circuit
P2516 A/C Refrigerant Pressure Sensor B Circuit Range/Performance
P2517 A/C Refrigerant Pressure Sensor B Circuit Low
P2518 A/C Refrigerant Pressure Sensor B Circuit High
P2519 A/C Request A Circuit
P251A PTO Enable Switch Circuit / Open
P251B PTO Enable Switch Circuit Low
P251C PTO Enable Switch Circuit High
P251D PTO Engine Shutdown Circuit / Open
P251E PTO Engine Shutdown Circuit Low
P251F PTO Engine Shutdown Circuit High
P2520 A/C Request A Circuit Low
P2521 A/C Request A Circuit High
P2522 A/C Request B Circuit
P2523 A/C Request B Circuit Low
P2524 A/C Request B Circuit High
P2525 Vacuum Reservoir Pressure Sensor Circuit
P2526 Vacuum Reservoir Pressure Sensor Circuit Range/Performance
P2527 Vacuum Reservoir Pressure Sensor Circuit Low
P2528 Vacuum Reservoir Pressure Sensor Circuit High
P2529 Vacuum Reservoir Pressure Sensor Circuit Intermittent
P252A Engine Oil Quality Sensor Circuit
P252B Engine Oil Quality Sensor Circuit Range/Performance
P252C Engine Oil Quality Sensor Circuit Low
P252D Engine Oil Quality Sensor Circuit High
P252E Engine Oil Quality Circuit Intermittent/Erratic
P252F Engine Oil Level Too High
P2530 Ignition Switch Run Position Circuit
P2531 Ignition Switch Run Position Circuit Low
P2532 Ignition Switch Run Position Circuit High
P2533 Ignition Switch Run/Start Position Circuit
P2534 Ignition Switch Run/Start Position Circuit Low
P2535 Ignition Switch Run/Start Position Circuit High
P2536 Ignition Switch Accessory Position Circuit
P2537 Ignition Switch Accessory Position Circuit Low
P2538 Ignition Switch Accessory Position Circuit High
P2539 Low Pressure Fuel System Sensor Circuit
P253A PTO Sense Circuit / Open
P253B PTO Sense Circuit Range/Performance
P253C PTO Sense Circuit Low
P253D PTO Sense Circuit High
P253E PTO Sense Circuit Intermittent/Erratic
P253F Engine Oil Deteriorated
P2540 Low Pressure Fuel System Sensor Circuit Range / Performance
P2541 Low Pressure Fuel System Sensor Circuit Low
P2542 Low Pressure Fuel System Sensor Circuit High
P2543 Low Pressure Fuel System Sensor Circuit Intermittent
P2544 Torque Management Request Input Signal A
P2545 Torque Management Request Input Signal A Range / Performance
P2546 Torque Management Request Input Signal A Low
P2547 Torque Management Request Input Signal A High
P2548 Torque Management Request Input Signal B
P2549 Torque Management Request Input Signal B Range / Performance
P254A PTO Speed Selector Sensor/Switch 1 Circuit / Open
P254B PTO Speed Selector Sensor/Switch 1 Circuit Range/Performance
P254C PTO Speed Selector Sensor/Switch 1 Circuit Low
P254D PTO Speed Selector Sensor/Switch 1 Circuit High
P254E PTO Speed Selector Sensor/Switch 1 Circuit Intermittent/Erratic
P254F Engine Hood Switch Circuit / Open
P2550 Torque Management Request Input Signal B Low
P2551 Torque Management Request Input Signal B High
P2552 Throttle/Fuel Inhibit “A” Circuit / Open
P2553 Throttle/Fuel Inhibit “A” Circuit Range / Performance
P2554 Throttle/Fuel Inhibit “A” Circuit Low
P2555 Throttle/Fuel Inhibit “A” Circuit High
P2556 Engine Coolant Level Sensor/Switch Circuit
P2557 Engine Coolant Level Sensor/Switch Circuit Range / Performance
P2558 Engine Coolant Level Sensor/Switch Circuit Low
P2559 Engine Coolant Level Sensor/Switch Circuit High
P255A PTO Speed Selector Sensor/Switch 2 Circuit / Open
P255B PTO Speed Selector Sensor/Switch 2 Circuit Range/Performance
P255C PTO Speed Selector Sensor/Switch 2 Circuit Low
P255D PTO Speed Selector Sensor/Switch 2 Circuit High
P255E PTO Speed Selector Sensor/Switch 2 Circuit Intermittent/Erratic
P255F A/C Request A Circuit Range/Performance
P2560 Engine Coolant Level Low
P2561 A/C Control Module Requested MIL Illumination
P2562 Turbocharger Boost Control Position Sensor A Circuit
P2563 Turbocharger Boost Control Position Sensor A Circuit Range/Performance
P2564 Turbocharger Boost Control Position Sensor A Circuit Low
P2565 Turbocharger Boost Control Position Sensor A Circuit High
P2566 Turbocharger Boost Control Position Sensor A Circuit Intermittent
P2567 Direct Ozone Reduction Catalyst Temperature Sensor Circuit
P2568 Direct Ozone Reduction Catalyst Temperature Sensor Circuit Range/Performance
P2569 Direct Ozone Reduction Catalyst Temperature Sensor Circuit Low
P256A Engine Idle Speed Selector Sensor/Switch Circuit / Open
P256B Engine Idle Speed Selector Sensor/Switch Circuit Range/Performance
P256C Engine Idle Speed Selector Sensor/Switch Circuit Low
P256D Engine Idle Speed Selector Sensor/Switch Circuit High
P256E Engine Idle Speed Selector Sensor/Switch Circuit Intermittent/Erratic
P256F A/C Request B Circuit Range/Performance
P2570 Direct Ozone Reduction Catalyst Temperature Sensor Circuit High
P2571 Direct Ozone Reduction Catalyst Temperature Sensor Circuit Intermittent/Erratic
P2572 Direct Ozone Reduction Catalyst Deterioration Sensor Circuit
P2573 Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance
P2574 Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Low
P2575 Direct Ozone Reduction Catalyst Deterioration Sensor Circuit High
P2576 Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Intermittent/Erratic
P2577 Direct Ozone Reduction Catalyst Efficiency Below Threshold
P2578 Turbocharger/Supercharger Speed Sensor “A” Circuit
P2579 Turbocharger/Supercharger Speed Sensor “A” Circuit Range/Performance
P257A Vacuum Reservoir Control Circuit / Open
P257B Vacuum Reservoir Control Circuit Low
P257C Vacuum Reservoir Control Circuit High
P257D Engine Hood Switch Circuit Range/Performance
P257E Engine Hood Switch Circuit Low
P257F Engine Hood Switch Circuit High
P2580 Turbocharger/Supercharger Speed Sensor “A” Circuit Low
P2581 Turbocharger/Supercharger Speed Sensor “A” Circuit High
P2582 Turbocharger/Supercharger Speed Sensor “A” Circuit Intermittent
P2583 Cruise Control Front Distance Range Sensor Single Sensor or Center
P2584 Fuel Additive Control Module Requested MIL Illumination
P2585 Fuel Additive Control Module Warning Lamp Request
P2586 Turbocharger Boost Control Position Sensor B Circuit
P2587 Turbocharger Boost Control Position Sensor B Circuit Range/Performance
P2588 Turbocharger Boost Control Position Sensor B Circuit Low
P2589 Turbocharger Boost Control Position Sensor B Circuit High
P258A Vacuum Pump Control Circuit / Open
P258B Vacuum Pump Control Range/Performance
P258C Vacuum Pump Control Circuit Low
P258D Vacuum Pump Control Circuit High
P258E PTO Eanable Switch Performance
P258F Torque Management Request Output Signal
P2590 Turbocharger Boost Control Position Sensor “B” Circuit Intermittent
P2591 Cruise Control Front Distance Range Sensor – Left
P2592 Cruise Control Front Distance Range Sensor – Right
P2593 Turbocharger Speed Sensor “B” Circuit
P2594 Turbocharger Speed Sensor “B” Circuit Range/Performance
P2595 Turbocharger Speed Sensor “B” Circuit Low
P2596 Turbocharger Speed Sensor “B” Circuit High
P2597 Turbocharger Speed Sensor “B” Circuit Intermittent
P2598 Turbocharger Boost Control Position Sensor “A” Performance – Stuck Low
P2599 Turbocharger Boost Control Position Sensor “A” Performance – Stuck High
P259A Turbocharger Boost Control Position Sensor “B” Performance – Stuck Low
P259B Turbocharger Boost Control Position Sensor “B” Performance – Stuck High
P259C Excessive Time To Enter Closed Loop Turbocharger “A” Boost Control
P259D Excessive Time To Enter Closed Loop Turbocharger “B” Boost Control
P259E Turbocharger “A” Boost Control Position At Low Limit
P259F Turbocharger “A” Boost Control Position At High Limit
P25A0 Turbocharger “B” Boost Control Position At Low Limit
P25A1 Turbocharger “B” Boost Control Position At High Limit
P25A2 Brake System Control Module Requested MIL Illumination
P25A3 Engine Hood Open
P25A4 Fuel Mode Select Switch Circuit
P25A5 Fuel Mode Select Switch Performance
P25A6 Fuel Mode Select Switch Circuit Low
P25A7 Fuel Mode Select Switch Circuit High
P25A8 Fuel Mode Select Switch Circuit Intermittent/Erratic
P25A9 Piston Cooling Oil Control Circuit/Open
P25AA Piston Cooling Oil Control Circuit Low
P25AB Piston Cooling Oil Control Circuit High
P25AC Piston Cooling Oil Control Circuit Performance/Stuck Off
P25AD Piston Cooling Oil Control Circuit Stuck On
P25AE Piston Cooling Oil Pressure Too Low
P25AF Coolant Temperature Control Module Requested MIL Illumination
P25B0 Fuel Level Sensor “A” Stuck
P25B1 Fuel Level Sensor “B” Stuck
P25B2 Fuel Level Sensor “A” or “B” Stuck
P25B3 Turbocharger/Supercharger Wastegate “A” Stuck Open
P25B4 Turbocharger/Supercharger Wastegate “A” Stuck Closed
P25B5 Turbocharger/Supercharger Wastegate “B” Stuck Open
P25B6 Turbocharger/Supercharger Wastegate “B” Stuck Closed
P25B7 Auxiliary Ignition Switch Run/Start Position Circuit
P25B8 Auxiliary Ignition Switch Run/Start Position Circuit Low
P25B9 Auxiliary Ignition Switch Run/Start Position Circuit High
P25BA Regeneration Control Switch Circuit/Open
P25BB Regeneration Control Switch Circuit Low
P25BC Regeneration Control Switch Circuit High
P25BD Unmetered Fuel – Forced Engine Shutdown
P25BE Alternative Fuel Disable Control Circuit/Open
P25BF Alternative Fuel Disable Control Circuit High
P25C0 Alternative Fuel Disable Control Circuit Low
P25C1 Alternative Fuel Disable Signal Circuit/Open
P25C2 Alternative Fuel Disable Signal Circuit High
P25C3 Alternative Fuel Disable Signal Circuit Low
P2600 Coolant Pump “A” Control Circuit / Open
P2601 Coolant Pump “A” Control Circuit Performance/Stuck Off
P2602 Coolant Pump “A” Control Circuit Low
P2603 Coolant Pump “A” Control Circuit High
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 Engine Off Timer Performance
P2611 A/C Refrigerant Distribution Valve Control Circuit / Open
P2612 A/C Refrigerant Distribution Valve Control Circuit Low
P2613 A/C Refrigerant Distribution Valve Control Circuit High
P2614 Camshaft Position Output Circuit / Open
P2615 Camshaft Position Output Circuit Low
P2616 Camshaft Position Output Circuit high
P2617 Crankshaft Position Output Circuit / Open
P2618 Crankshaft Position Output Circuit Low
P2619 Crankshaft Position 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 / Open
P2624 Injector Control Pressure Regulator Low
P2625 Injector Control Pressure Regulator High
P2626 O2 Sensor Positive Current Trim Circuit / Open Bank 1 Sensor 1
P2627 O2 Sensor Positive Current Trim Circuit Low Bank 1, Sensor 1
P2628 O2 Sensor Positive Current Trim Circuit High Bank 1, Sensor 1
P2629 O2 Sensor Positive 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 Positive Current Trim Circuit Low Bank 2, Sensor 1
P2631 O2 Sensor Positive 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 Control System Performance/Stuck Off Bank 1
P2652 B Rocker Arm Actuator Control 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 Control System Performance/Stuck Off Bank 2
P2662 B Rocker Arm Actuator Control 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 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 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 “A” 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
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 Over Temperature
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 Circuit/Open
P26DC Engine Sound Control Circuit Low
P26DD Engine Sound Control Circuit High
P26DE Engine Sound Control 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 Mudule “B”
P26EB Alternative Fuel Control Module System Voltage
P2700 Transmission Friction Element A Apply Time Range/Performance
P2701 Transmission Friction Element B Apply Time Range/Performance
P2702 Transmission Friction Element C Apply Time Range/Performance
P2703 Transmission Friction Element D Apply Time Range/Performance
P2704 Transmission Friction Element E Apply Time Range/Performance
P2705 Transmission Friction Element F Apply Time Range/Performance
P2706 Shift Solenoid F
P2707 Shift Solenoid F Performance/Stuck Off
P2708 Shift Solenoid F Stuck On
P2709 Shift Solenoid F Electrical
P270A Transmission Friction Element “A” Temperature Too High
P270B Transmission Friction Element “B” Temperature Too High
P270C Transmission Friction Element “C” Temperature Too High
P270D Transmission Friction Element “D” Temperature Too High
P270E Transmission Friction Element “E” Temperature Too High
P270F Transmission Friction Element “F” Temperature Too High
P2710 Shift Solenoid F Intermittent
P2711 Unexpected Mechanical Gear Disengagement
P2712 Hydraulic Power Unit Leakage
P2713 Pressure Control Solenoid D
P2714 Pressure Control Solenoid D Performance/Stuck Off
P2715 Pressure Control Solenoid D Stuck On
P2716 Pressure Control Solenoid D Electrical
P2717 Pressure Control Solenoid D Intermittent
P2718 Pressure Control Solenoid D Control Circuit / Open
P2719 Pressure Control Solenoid D Control Circuit Range/Performance
P271A Park Pawl Position Sensor “A” Circuit Low
P271B Park Pawl Position Sensor “A” Circuit High
P271C Park Pawl Position Sensor “B” Circuit Low
P271D Park Pawl Position Sensor “B” Circuit High
P2720 Pressure Control Solenoid D Control Circuit Low
P2721 Pressure Control Solenoid D Control Circuit High
P2722 Pressure Control Solenoid E
P2723 Pressure Control Solenoid E Performance/Stuck Off
P2724 Pressure Control Solenoid E Stuck On
P2725 Pressure Control Solenoid E Electrical
P2726 Pressure Control Solenoid E Intermittent
P2727 Pressure Control Solenoid E Control Circuit / Open
P2728 Pressure Control Solenoid E Control Circuit Range/Performance
P2729 Pressure Control Solenoid E Control Circuit Low
P272A Transmission Range Select Motor Control Circuit
P272B Transmission Range Select Motor Control Circuit Too High
P272C Park Pawl Motor Control Circuit
P272D Park Pawl Motor Control Circuit Current Too High
P2730 Pressure Control Solenoid E Control Circuit High
P2731 Pressure Control Solenoid F
P2732 Pressure Control Solenoid F Performance/Stuck Off
P2733 Pressure Control Solenoid F Stuck On
P2734 Pressure Control Solenoid F Electrical
P2735 Pressure Control Solenoid F Intermittent
P2736 Pressure Control Solenoid F Control Circuit / Open
P2737 Pressure Control Solenoid F Control Circuit Range/Performance
P2738 Pressure Control Solenoid F Control Circuit Low
P2739 Pressure Control Solenoid F Control Circuit High
P273A Transmission Friction Element G Apply Time Range/Performance
P273B Transmission Friction Element H Apply Time Range/Performance
P273F Transmission Fluid Temperature Sensor “B” Over Temperature Condition
P2740 Transmission Fluid Temperature Sensor B Circuit
P2741 Transmission Fluid Temperature Sensor B Circuit Range/Performance
P2742 Transmission Fluid Temperature Sensor B Circuit Low
P2743 Transmission Fluid Temperature Sensor B Circuit High
P2744 Transmission Fluid Temperature Sensor B Circuit Intermittent
P2745 Intermediate Shaft Speed Sensor B Circuit
P2746 Intermediate Shaft Speed Sensor B Circuit Range/Performance
P2747 Intermediate Shaft Speed Sensor B Circuit No Signal
P2748 Intermediate Shaft Speed Sensor B Circuit Intermittent
P2749 Intermediate Shaft Speed Sensor C Circuit
P274A Transmission Fluid Temperature Sensor “C” Circuit
P274B Transmission Fluid Temperature Sensor “C” Circuit Range/Performance
P274C Transmission Fluid Temperature Sensor “C” Circuit Low
P274D Transmission Fluid Temperature Sensor “C” Circuit High
P274E Transmission Fluid Temperature Sensor “C” Circuit Intermittent
P274F Transmission Fluid Temperature Sensor “C” Over Temperature Condition
P2750 Intermediate Shaft Speed Sensor C Circuit Range/Performance
P2751 Intermediate Shaft Speed Sensor C Circuit No Signal
P2752 Intermediate Shaft Speed Sensor C Circuit Intermittent
P2753 Transmission Fluid Cooler Control Circuit / Open
P2754 Transmission Fluid Cooler Control Circuit Low
P2755 Transmission Fluid Cooler Control Circuit High
P2756 Torque Converter Clutch Pressure Control Solenoid
P2757 Torque Converter Clutch Pressure Control Solenoid Control Circuit Perf or Stuck Off
P2758 Torque Converter Clutch Pressure Control Solenoid Stuck On
P2759 Torque Converter Clutch Pressure Control Solenoid Electrical
P275A Transmission Fluid Temperature Sensor “D” Circuit
P275B Transmission Fluid Temperature Sensor “D” Circuit Range/Performance
P275C Transmission Fluid Temperature Sensor “D” Circuit Low
P275D Transmission Fluid Temperature Sensor “D” Circuit High
P275E Transmission Fluid Temperature Sensor “D” Circuit Intermittent
P275F Transmission Fluid Temperature Sensor “D” Over Temperature Condition
P2760 Torque Converter Clutch Pressure Control Solenoid Intermittent
P2761 Torque Converter Clutch Pressure Control Solenoid Control Circuit / Open
P2762 Torque Converter Clutch Pressure Control Solenoid Control Circuit Range / Perf
P2763 Torque Converter Clutch Pressure Control Solenoid Control Circuit High
P2764 Torque Converter Clutch Pressure Control Solenoid Control Circuit Low
P2765 Input / Turbine Speed Sensor B Circuit
P2766 Input / Turbine Speed Sensor B Circuit Range / Performance
P2767 Input / Turbine Speed Sensor B Circuit No Signal
P2768 Input / Turbine Speed Sensor B Circuit Intermittent
P2769 Torque Converter Clutch Circuit Low
P2770 Torque Converter Clutch Circuit High
P2771 Four Wheel Drive (4WD) Low Switch Circuit
P2772 Four Wheel Drive (4WD) Low Switch Circuit Range/Performance
P2773 Four Wheel Drive (4WD) Low Switch Circuit Low
P2774 Four Wheel Drive (4WD) Low Switch Circuit High
P2775 Upshift Switch Circuit Range/Performance
P2776 Upshift Switch Circuit Low
P2777 Upshift Switch Circuit High
P2778 Upshift Switch Circuit Intermittent/Erratic
P2779 Downshift Switch Circuit Range/Performance
P2780 Downshift Switch Circuit Low
P2781 Downshift Switch Circuit High
P2782 Downshift Switch Circuit Intermittent/Erratic
P2783 Torque Converter Temperature Too High
P2784 Input / Turbine Speed Sensor A / B Correlation
P2785 Clutch Actuator Temperature Too High
P2786 Gear Shift Actuator Temperature Too High
P2787 Clutch Temperature Too High
P2788 Auto Shift Manual Adaptive Learning at Limit
P2789 Clutch A Adaptive Learning at Limit
P278A Kick Down Switch Circuit
P278B Kick Down Switch Circuit Range/Performance
P278C Kick Down Switch Circuit Low
P278D Kick Down Switch Circuit High
P278E Kick Down Switch Circuit Intermittent/Erratic
P278F Clutch “B” Adaptive Learning at Limit
P2790 Gate Select Direction Circuit
P2791 Gate Select Direction Circuit Low
P2792 Gate Select Direction Circuit High
P2793 Gear Shift Direction Circuit
P2794 Gear Shift Direction Circuit Low
P2795 Gear Shift Direction Circuit High
P2796 Electric/Auxiliary Transmission Fluid Pump Control Circuit/Open
P2797 Electric/Auxiliary Transmission Fluid Pump Circuit Performance/Stuck Off
P2798 Electric/Auxiliary Transmission Fluid Pump Control Circuit Low
P2799 Electric/Auxiliary Transmission Fluid Pump Control Circuit High
P279A Transfer Case Gear High Incorrect Ratio
P279B Transfer Case Gear Low Incorrect Ratio
P279C Transfer Case Gear Incorrect Incorrect Ratio
P279D Four Wheel Drive (4WD) Range Signal Circuit
P279E Four Wheel Drive (4WD) Range Signal Circuit Range Performance
P279F Four Wheel Drive (4WD) Range Signal Circuit Low
P27A0 Four Wheel Drive (4WD) Range Signal Circuit High
P27A1 Electric/Auxiliary Transmission Fluid Pump Stuck On
P2800 Transmission Range Sensor B Circuit (PRNDL Input)
P2801 Transmission Range Sensor B Circuit Range/Performance
P2802 Transmission Range Sensor B Circuit Low
P2803 Transmission Range Sensor B Circuit High
P2804 Transmission Range Sensor B Circuit Intermittent
P2805 Transmission Range Sensor A / B Correlation
P2806 Transmission Range Sensor Alignment
P2807 Pressure Control Solenoid G
P2808 Pressure Control Solenoid G Performance/Stuck Off
P2809 Pressure Control Solenoid G Stuck On
P280A Transmission Range Sensor “A” Circuit Not Learned
P280B Transmission Range Sensor “B” Circuit Not Learned
P280C Transmission Adaptive Values Not Learned
P2810 Pressure Control Solenoid G Electrical
P2811 Pressure Control Solenoid G Intermittent
P2812 Pressure Control Solenoid G Control Circuit / Open
P2813 Pressure Control Solenoid G Control Circuit Range/Performance
P2814 Pressure Control Solenoid G Control Circuit Low
P2815 Pressure Control Solenoid G Control Circuit High
P2816 Pressure Control Solenoid H
P2817 Pressure Control Solenoid H Performance/Stuck Off
P2818 Pressure Control Solenoid H Stuck On
P2819 Pressure Control Solenoid H Electrical
P281A Pressure Control Solenoid H Intermittent
P281B Pressure Control Solenoid H Control Circuit / Open
P281C Pressure Control Solenoid H Control Circuit Range/Performance
P281D Pressure Control Solenoid H Control Circuit Low
P281E Pressure Control Solenoid H Control Circuit High
P281F Pressure Control Solenoid J
P2820 Pressure Control Solenoid J Performance/Stuck Off
P2821 Pressure Control Solenoid J Stuck On
P2822 Pressure Control Solenoid J Electrical
P2823 Pressure Control Solenoid J Intermittent
P2824 Pressure Control Solenoid J Control Circuit / Open
P2825 Pressure Control Solenoid J Control Circuit Range/Performance
P2826 Pressure Control Solenoid J Control Circuit Low
P2827 Pressure Control Solenoid J Control Circuit High
P2828 Pressure Control Solenoid K
P2829 Pressure Control Solenoid K Performance/Stuck Off
P282A Pressure Control Solenoid K Stuck On
P282B Pressure Control Solenoid K Electrical
P282C Pressure Control Solenoid K Intermittent
P282D Pressure Control Solenoid K Control Circuit / Open
P282E Pressure Control Solenoid K Control Circuit Range/Performance
P282F Pressure Control Solenoid K Control Circuit Low
P2830 Pressure Control Solenoid K Control Circuit High
P2831 Shift Fork A Position Circuit
P2832 Shift Fork A Position Circuit Range/Performance
P2833 Shift Fork A Position Circuit Low
P2834 Shift Fork A Position Circuit High
P2835 Shift Fork A Position Circuit Intermittent
P2836 Shift Fork B Position Circuit
P2837 Shift Fork B Position Circuit Range/Performance
P2838 Shift Fork B Position Circuit Low
P2839 Shift Fork B Position Circuit High
P283A Shift Fork B Position Circuit Intermittent
P283B Shift Fork C Position Circuit
P283C Shift Fork C Position Circuit Range/Performance
P283D Shift Fork C Position Circuit Low
P283E Shift Fork C Position Circuit High
P283F Shift Fork C Position Circuit Intermittent
P2840 Shift Fork D Position Circuit
P2841 Shift Fork D Position Circuit Range/Performance
P2842 Shift Fork D Position Circuit Low
P2843 Shift Fork D Position Circuit High
P2844 Shift Fork D Position Circuit Intermittent
P2845 Shift Fork A Position Sensor Incorrect Neutral Position Indicated
P2846 Shift Fork B Position Sensor Incorrect Neutral Position Indicated
P2847 Shift Fork C Position Sensor Incorrect Neutral Position Indicated
P2848 Shift Fork D Position Sensor Incorrect Neutral Position Indicated
P2849 Shift Fork A Stuck
P284A Shift Fork B Stuck
P284B Shift Fork C Stuck
P284C Shift Fork D Stuck
P284D Shift Fork A Unrequested Movement
P284E Shift Fork B Unrequested Movement
P284F Shift Fork C Unrequested Movement
P2850 Shift Fork “D” Unrequested Movement
P2851 Shift Fork Position Sensor “A”/”B” Correlation
P2852 Shift Fork Position Sensor “C”/”D” Correlation
P2853 Clutch “A” Pressure Discharge Performance
P2854 Clutch “B” Pressure Discharge Performance
P2855 Clutch “A” Pressure Charge Performance
P2856 Clutch “B” Pressure Charge Performance
P2857 Clutch “A” Pressure Engagement Performance / Too Low
P2858 Clutch “B” Pressure Engagement Performance / Too Low
P2859 Clutch “A” Pressure Disengagement Performance / Too Low
P285A Clutch “B” Pressure Disengagement Performance / Too Low
P285B Shift Fork “A” Actuator Circuit / Open
P285C Shift Fork “A” Actuator Circuit Performance
P285D Shift Fork “A” Actuator Circuit Low
P285E Shift Fork “A” Actuator Circuit High
P285F Shift Fork “B” Actuator Circuit / Open
P2860 Shift Fork “B” Actuator Circuit Performance
P2861 Shift Fork “B” Actuator Circuit Low
P2862 Shift Fork “B” Actuator Circuit High
P2863 Shift Fork “E” Position Circuit
P2864 Shift Fork “E” Position Circuit Range/Performance
P2865 Shift Fork “E” Position Circuit Low
P2866 Shift Fork “E” Position Circuit High
P2867 Shift Fork “E” Position Circuit Intermittent
P2868 Shift Fork “E” Position Sensor Incorrect Neutral Position Indicated
P2869 Shift Fork “E” Stuck
P286A Shift Fork “E” Unrequested Movement
P286B Clutch “A” Pressure Engagement Too High
P286C Clutch “A” Pressure Disengagement Too High
P286D Clutch “A” Engagement Time Performance/Too Slow
P286E Clutch “A” Engagement Time Too Fast
P286F Clutch “A” Disengagement Time Performance/Too Slow
P2870 Clutch “A” Disengagement Time Too Fast
P2871 Clutch “A” Performance/Stuck Disengaged
P2872 Clutch “A” Stuck Engaged
P2873 Clutch “B” Pressure Engagement Too High
P2874 Clutch “B” Pressure Disengagement Too High
P2875 Clutch “B” Engagement Time Performance/Too Slow
P2876 Clutch “B” Engagement Time Too Fast
P2877 Clutch “B” Disengagement Time Performance/Too Slow
P2878 Clutch “B” Disengagement Time Too Fast
P2879 Clutch “B” Performance/Stuck Disengaged
P287A Clutch “B” Stuck Engaged
P287B Shift Fork Calibration Not Learned
P287D Electric/Auxiliary Transmission Fluid Pump Motor Torque Out Of Range
P287E Engine Disconnect Clutch Solenoid Circuit/Open
P287F Engine Disconnect Clutch Solenoid Circuit Range/Performance
P2880 Engine Disconnect Clutch Solenoid Circuit Low
P2881 Engine Disconnect Clutch Solenoid Circuit High
P2882 Engine Disconnect Clutch Excessive Slippage
P2883 Engine Disconnect Clutch Temperature Too High
P2884 Engine Disconnect Clutch Stuck Open
P2885 Engine Disconnect Clutch Engagement Fault
P2886 Engine Disconnect Clutch Stuck Closed
P2A00 O2 Circuit Range / Performance (Bank 1, Sensor 1)
P2A01 O2 Circuit Range / Performance (Bank 1, Sensor 2)
P2A02 O2 Circuit Range / Performance (Bank 1, Sensor 3)
P2A03 O2 Circuit Range / Performance (Bank 2, Sensor 1)
P2A04 O2 Circuit Range / Performance (Bank 2, Sensor 2)
P2A05 O2 Circuit Range / Performance (Bank 2, Sensor 3)
P2A06 O2 Circuit Negative Voltage (Bank 1, Sensor 1)
P2A07 O2 Circuit Negative Voltage (Bank 1, Sensor 2)
P2A08 O2 Circuit Negative Voltage (Bank 1, Sensor 3)
P2A09 O2 Circuit Negative Voltage (Bank 2, Sensor 1)
P2A10 O2 Circuit Negative Voltage (Bank 2, Sensor 2)
P2A11 O2 Circuit Negative Voltage (Bank 2, Sensor 3)
P2A12 Injection Pump Fuel Metering Control “C” (Cam/Rotor/Injector)
P2A13 Injection Pump Fuel Metering Control “C” Range (Cam/Rotor/Injector)
P2A14 Injection Pump Fuel Metering Control “C” Low (Cam/Rotor/Injector)
P2A15 Injection Pump Fuel Metering Control “C” High (Cam/Rotor/Injector)
P2A16 Injection Pump Fuel Metering Control “D” (Cam/Rotor/Injector)
P2A17 Injection Pump Fuel Metering Control “D” Range/Performance (Cam/Rotor/Injector)
P2A18 Injection Pump Fuel Metering Control “D” Low (Cam/Rotor/Injector)
P2A19 Injection Pump Fuel Metering Control “D” High (Cam/Rotor/Injector)
P2A1A Injection Pump Fuel Metering Control “E” (Cam/Rotor/Injector)
P2A1B Injection Pump Fuel Metering Control “E” Range/Performance (Cam/Rotor/Injector)
P2A1C Injection Pump Fuel Metering Control “E” Low (Cam/Rotor/Injector)
P2A1D Injection Pump Fuel Metering Control “E” High (Cam/Rotor/Injector)
P2A1E Injection Pump Fuel Metering Control “F” (Cam/Rotor/Injector)
P2A1F Injection Pump Fuel Metering Control “F” Range/Performance (Cam/Rotor/Injector)
P2A20 Injection Pump Fuel Metering Control “F” Low (Cam/Rotor/Injector)
P2A21 Injection Pump Fuel Metering Control “F” High (Cam/Rotor/Injector)
P2A22 Alternative Fuel Tank Shutoff Valve “B” Control Circuit/Open
P2A23 Alternative Fuel Tank Shutoff Valve “B” Control Circuit Range/Performance
P2A24 Alternative Fuel Tank Shutoff Valve “B” Control Circuit Low
P2A25 Alternative Fuel Tank Shutoff Valve “B” Control Circuit High
P2A26 Alternative Fuel Tank Shutoff Valve “C” Control Circuit/Open
P2A27 Alternative Fuel Tank Shutoff Valve “C” Control Circuit Range/Performance
P2A28 Alternative Fuel Tank Shutoff Valve “C” Control Circuit Low
P2A29 Alternative Fuel Tank Shutoff Valve “C” Control Circuit High
P2A2A Alternative Fuel Tank Shutoff Valve “D” Control Circuit/Open
P2A2B Alternative Fuel Tank Shutoff Valve “D” Control Circuit Range/Performance
P2A2C Alternative Fuel Tank Shutoff Valve “D” Control Circuit Low
P2A2D Alternative Fuel Tank Shutoff Valve “D” Control Circuit High
P2A2E Alternative Fuel Tank Shutoff Valve “E” Control Circuit/Open
P2A2F Alternative Fuel Tank Shutoff Valve “E” Control Circuit Range/Performance
P2A30 Alternative Fuel Tank Shutoff Valve “E” Control Circuit Low
P2A31 Alternative Fuel Tank Shutoff Valve “E” Control Circuit High
P2A32 AFCM Power Relay Control Circuit/Open
P2A33 AFCM Power Relay Control Circuit Low
P2A34 AFCM Power Relay Control Circuit High
P2A35 AFCM Power Relay Sense Circuit
P2A36 AFCM Power Relay Sense Circuit Low
P2A37 AFCM Power Relay Sense Circuit High
P2BA7 NOx Exceedance – Empty Reagent Tank
P2BA8 NOx Exceedance – Interruption of Reagent Dosing Activity
P2BA9 NOx Exceedance – Insufficient Reagent Quality
P2BAA NOx Exceedance – Low Reagent Consumption
P2BAB NOx Exceedance – Incorrect EGR Flow
P2BAC NOx Exceedance – Deactivation of EGR
P2BAD NOx Exceedance – Root Cause Unknown
P2BAE NOx Exceedance – NOx Control Monitoring System