All OBD-II Trouble Codes and Definitions

• P2436 Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance
• P2437 Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low
• P2438 Secondary Air Injection System Air Flow/Pressure Sensor Circuit High
• P2439 Secondary Air Injection System Air Flow/Pressure Sensor Circuit Intermittent/Erratic
• P2440 Secondary Air Injection System Switching Valve Stuck Open
• P2441 Secondary Air Injection System Switching Valve Stuck Closed
• P2442 Secondary Air Injection System Switching Valve Stuck Open
• P2443 Secondary Air Injection System Switching Valve Stuck Closed
• P2444 Secondary Air Injection System Pump Stuck On
• P2445 Secondary Air Injection System Pump Stuck Off
• P2446 Secondary Air Injection System Pump Stuck On
• P2447 Secondary Air Injection System Pump Stuck Off
• 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
• 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
• 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
• 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
• 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
• P2550 Torque Management Request Input Signal “B” Low
• P2551 Torque Management Request Input Signal “B” High
• P2552 Throttle/Fuel Inhibit Circuit
• P2553 Throttle/Fuel Inhibit Circuit Range/Performance

• P2554 Throttle/Fuel Inhibit Circuit Low
• P2555 Throttle/Fuel Inhibit 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
• P2560 Engine Coolant Level Low
• P2561 A/C Control Module Requested MIL Illumination
• P2562 Turbocharger Boost Control Position Sensor Circuit
• P2563 Turbocharger Boost Control Position Sensor Circuit Range/Performance
• P2564 Turbocharger Boost Control Position Sensor Circuit Low
• P2565 Turbocharger Boost Control Position Sensor Circuit High
• P2566 Turbocharger Boost Control Position Sensor 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
• 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
• P2600 Coolant Pump Control Circuit/Open
• P2601 Coolant Pump Control Circuit Range/Performance
• P2602 Coolant Pump Control Circuit Low
• P2603 Coolant Pump Control Circuit High
• P2604 Intake Air Heater “A” Circuit Range/Performance
• P2605 Intake Air Heater “A” 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
• P2610 ECM/PCM Internal 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 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
• 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
• P2627 O2 Sensor Pumping Current Trim Circuit Low
• P2628 O2 Sensor Pumping Current Trim Circuit High
• P2629 O2 Sensor Pumping Current Trim Circuit/Open
• P2630 O2 Sensor Pumping Current Trim Circuit Low
• P2631 O2 Sensor Pumping Current Trim Circuit High
• 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
• P2640 Torque Management Feedback Signal “A” High
• P2641 Torque Management Feedback Signal “B”

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