Engine Diagnostic Codes (P0XXX)

Complete list of engine diagnostic trouble codes (P0XXX). Browse powertrain codes for engine, transmission, and emission control systems.

Popular Engine Codes

P0100

Mass Air Flow Circuit

Mass or Volume Air Flow Circuit malfunction

P0171

System Too Lean (Bank 1)

System too Lean (Bank 1)

P0300

Random/Multiple Cylinder Misfire

Random/Multiple Cylinder Misfire Detected

P0420

Catalyst System Efficiency

Catalyst System Efficiency Below Threshold (Bank 1)

P0442

EVAP System Leak

Evaporative Emission Control System Leak Detected (small leak)

Complete Engine Codes Index

Browse all available engine diagnostic trouble codes (P0XXX) organized by system:

Showing codes 9701-9800 of 12293 total codes

P25XX Engine Control System

P25E4
DTC P25E4 refers to a malfunction in the Vehicle Control Module (VCM),
P25E5
The P25E5 code indicates a malfunction in the hybrid energy management system.
P25E6
P25E6 indicates a fuel system issue, often related to the fuel injector circuit.
P25E7
P25E7 indicates a fault in the hybrid battery management system,
P25E8
DTC P25E8 indicates a fault in the hybrid powertrain system, typically in ele...
P25E9
DTC P25E9 indicates an issue with the hybrid battery management system.
P25EA
P25EA indicates a problem with the Transmission Control Module in certain For...
P25EB
P25EB indicates a malfunction in the hybrid battery management system.
P25EC
The P25EC code indicates a problem with the hybrid battery management system,...
P25ED
DTC P25ED indicates a fault in the electronic throttle control system.
P25EE
P25EE indicates a problem with the fuel pump control module.
P25EF
P25EF indicates a communication issue with the Powertrain Control Module in F...
P25F0
P25F0 indicates a fuel pump control module performance issue.
P25F1
P25F1 indicates a communication error between the ECM and TCM.
P25F2
P25F2 indicates a hybrid battery management system malfunction,
P25F3
DTC P25F3 indicates a fuel pump module malfunction.
P25F4
The P25F4 code indicates a fuel pump control module issue.
P25F5
DTC P25F5 signifies a malfunction in the fuel pressure regulator control circ...
P25F6
The DTC P25F6 is a diagnostic trouble code that indicates a problem related t...
P25F7
The P25F7 code signifies a problem with the hybrid battery pack,
P25F8
P25F8 indicates a communication error between the ECM and TCM,
P25F9
P25F9 indicates a problem with the fuel pump control circuit's range or perfo...
P25FA
P25FA indicates a communication error between the PCM and other vehicle contr...
P25FB
Indicates nd repair as soon as possible.
P25FC
P25FC indicates a problem in the hybrid battery management system.
P25FD
P25FD indicates a fault in the hybrid battery management system.
P25FE
The P25FE code indicates a fuel pressure sensor circuit issue in the vehicle'...
P25FF
P25FF indicates a fuel pump control circuit failure.

P26XX Engine Control System

P2600
The P2600 code indicates a malfunction in the engine coolant pump control cir...
P2601
P2601 indicates a performance issue with the engine coolant pump control circ...
P2602
P2602 indicates a problem with the engine coolant pump control circuit perfor...
P2603
P2603 indicates a problem with the Engine Coolant Pump Control Circuit.
P2604
The P2604 code indicates a malfunction in the engine coolant pump or its circ...
P2605
DTC P2605 indicates a malfunction in the engine coolant bypass valve control ...
P2606
DTC P2606 signifies a malfunction in the engine coolant pump control circuit,...
P2607
DTC P2607 indicates a problem with the engine coolant pump control circuit.
P2608
The P2608 code indicates a malfunction in the coolant pump control circuit,
P2609
P2609 indicates a problem with the Engine Coolant Temperature Sensor circuit,...
P260A
P260A indicates a problem with the coolant pump performance.
P260B
P260B indicates a coolant pump control circuit issue, affecting engine cooling.
P260C
P260C means there is a problem with the engine coolant bypass valve control c...
P260D
The P260D code indicates a coolant pump control circuit issue,
P260E
Indicates an issue with the engine coolant pump control circuit.
P260F
P260F indicates a problem with the engine coolant pump control circuit.
P2610
P2610 indicates a malfunction in the engine coolant temperature sensor circuit.
P2611
The P2611 code indicates a performance issue with the Engine Control Module (...
P2612
DTC P2612 signifies a performance issue within the Engine Control Module,
P2613
DTC P2613 indicates a performance issue with the Engine Control Module relate...
P2614
P2614 indicates a malfunction with the Engine Coolant Temperature sensor.
P2615
The P2615 code indicates a malfunction in the Engine Control Module's perform...
P2616
P2616 indicates a malfunction in the camshaft position sensor circuit detecte...
P2617
P2617 signals a malfunction in the ECM related to the engine coolant temperat...
P2618
P2618 indicates a problem with the ECM's internal temperature sensor performa...
P2619
P2619 indicates a problem with the engine coolant temperature sensor performa...
P261A
The P261A code indicates a problem with the ECM's internal temperature sensor...
P261B
DTC P261B refers to a malfunction in the ECM's engine coolant temperature sen...
P261C
P261C signifies an issue with the Engine Control Module's performance due to ...
P261D
DTC P261D signifies a fault in the engine control module's internal temperatu...
P261E
P261E indicates a performance issue with the Engine Control Module (ECM).
P261F
P261F indicates a malfunction in the engine coolant temperature sensor circuit.
P2620
The P2620 code indicates a malfunction in the fuel level sensor circuit.
P2621
P2621 indicates a problem with the oxygen sensor control circuit performance.
P2622
P2622 indicates a low signal from the oxygen sensor circuit, affecting fuel e...
P2623
P2623 indicates a problem with the fuel composition sensor circuit,
P2624
The P2624 code indicates low voltage in the oxygen sensor circuit.
P2625
P2625 indicates a problem with the fuel level sensor circuit's range or perfo...
P2626
P2626 indicates a problem with the fuel level sensor circuit.
P2627
P2627 indicates an oxygen sensor control circuit problem.
P2628
P2628 indicates a problem with the fuel level sensor's performance or range.
P2629
P2629 indicates a high signal from the oxygen sensor circuit, affecting engin...
P262A
P262A indicates a problem with the fuel level sensor performance.
P262B
Indicates a problem with the fuel sensor circuit, particularly in the fuel ta...
P262C
The P262C code signifies a performance issue with the fuel pump control module.
P262D
P262D indicates a problem with the oxygen sensor's pumping current range.
P262E
P262E indicates a fuel level sensor circuit issue.
P262F
P262F indicates a problem with the fuel pressure regulator control circuit.
P2630
P2630 indicates a fuel pump performance issue detected by the ECM.
P2631
The diagnostic trouble code (DTC) P2631 indicates a problem with the engine o...
P2632
P2632 indicates low oil pressure signal from the oil pump.
P2633
DTC P2633 signifies a problem with the engine oil pressure sensor circuit,
P2634
The P2634 code indicates a performance issue with the fuel pump control module.
P2635
P2635 indicates a problem with the engine oil pressure sensor's range or perf...
P2636
The P2636 code indicates a performance issue with the fuel pump control module.
P2637
P2637 indicates a problem with the engine oil pressure sensor circuit perform...
P2638
P2638 indicates a performance issue with the engine oil pressure sensor.
P2639
P2639 refers to a performance issue with the engine oil pressure sensor.
P263A
P263A indicates a fuel pump control module performance issue, affecting fuel ...
P263B
P263B indicates a problem with engine oil pressure, affecting performance and...
P263C
DTC P263C indicates a fuel pump performance issue that affects engine efficie...
P263D
DTC P263D indicates a fuel pump performance issue detected by the engine cont...
P263E
DTC P263E indicates an issue with the oil pressure sensor circuit,
P263F
The P263F code indicates a performance issue with the oil pump control circuit.
P2640
P2640 refers to a malfunction in the Variable Valve Timing (VVT) sensor circu...
P2641
P2641 indicates a problem with the Variable Valve Timing system,
P2642
P2642 indicates a malfunction in the engine oil pressure switch or circuit.
P2643
P2643 indicates a problem with the Variable Valve Timing (VVT) system,
P2644
DTC P2644 indicates a problem with the VVT system's oil pressure control.
P2645
The P2645 code indicates a malfunction in the oil control valve in the VVT sy...
P2646
P2646 indicates an issue with the oil control valve performance within the va...
P2647
P2647 indicates an issue with the oil control valve performance in the VVT sy...
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