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 8101-8200 of 12293 total codes

P1FXX Engine Control System

P1FA4
The P1FA4 code indicates a hybrid battery voltage sensor issue,
P1FA5
The P1FA5 code signifies a problem with the fuel pump control module,
P1FA6
DTC P1FA6 indicates a fault in the hybrid battery management system,
P1FA7
P1FA7 indicates a problem with the hybrid powertrain performance,
P1FA8
P1FA8 signals a malfunction in the hybrid powertrain control module,
P1FA9
The P1FA9 code indicates a performance issue with the hybrid battery voltage ...
P1FAA
The P1FAA code indicates a fault in the fuel system or air intake of your veh...
P1FAB
P1FAB indicates a powertrain control module issue, often linked to sensor com...
P1FAC
The P1FAC code indicates a fuel pressure sensor malfunction.
P1FAD
P1FAD indicates a hybrid battery performance issue.
P1FAE
P1FAE indicates a malfunction in the auxiliary emission control system,
P1FAF
P1FAF indicates a fault in the hybrid powertrain system, particularly in Ford...
P1FB0
P1FB0 indicates a hybrid battery pack malfunction, particularly in models lik...
P1FB1
P1FB1 indicates a hybrid battery management issue in your vehicle.
P1FB2
DTC P1FB2 indicates a communication issue between the engine control module a...
P1FB3
P1FB3 indicates a malfunction in the hybrid battery management system.
P1FB4
P1FB4 indicates a problem with the hybrid battery condition in certain vehicles.
P1FB5
DTC P1FB5 indicates a malfunction in the hybrid battery management system.
P1FB6
The diagnostic trouble code (DTC) P1FB6 is specific to hybrid vehicles,
P1FB7
Indicates the BECM has detected a fault in its operation or communication wit...
P1FB8
P1FB8 indicates a battery energy control module issue, affecting vehicle perf...
P1FB9
Indicates a malfunction in the electric motor control module (eMCM) or issues...
P1FBA
DTC P1FBA indicates a fault in the hybrid powertrain system, specifically rel...
P1FBB
P1FBB indicates a malfunction in the hybrid battery management system,
P1FBC
P1FBC indicates a malfunction in the battery management system of hybrid vehi...
P1FBD
The P1FBD code indicates a hybrid battery performance issue in vehicles like ...
P1FBE
P1FBE indicates a malfunction related to the battery energy control system in...
P1FBF
P1FBF indicates a fault in the hybrid powertrain system, typically related to...
P1FC0
P1FC0 indicates a fault in the Hybrid Control System of your vehicle.
P1FC1
P1FC1 indicates a fault in the hybrid control system, particularly affecting ...
P1FC2
DTC P1FC2 indicates a fault in the Hybrid Powertrain Control Module.
P1FC3
P1FC3 indicates a voltage range error in the hybrid battery system.
P1FC4
P1FC4 indicates a fault in the Engine Control Module, often linked to communi...
P1FC5
DTC P1FC5 indicates a malfunction in the hybrid system of your vehicle,
P1FC6
P1FC6 means there's a problem with the Hybrid Battery Control Module in your ...
P1FC7
P1FC7 indicates a malfunction in the hybrid battery management system.
P1FC8
The diagnostic trouble code (DTC) P1FC8 typically indicates an issue associat...
P1FC9
P1FC9 indicates a malfunction in the hybrid battery management system.
P1FCA
P1FCA indicates a fault in the hybrid battery management system of the vehicle.
P1FCB
P1FCB signifies a malfunction in the hybrid control system, affecting perform...
P1FCC
The P1FCC code signals a fuel system issue, typically with fuel pressure mana...
P1FCD
P1FCD indicates a malfunction in the hybrid battery or its components,
P1FCE
P1FCE indicates a drop in hybrid battery performance, often seen in Toyota Pr...
P1FCF
P1FCF indicates a high voltage battery-related issue in hybrid systems.
P1FD0
P1FD0 indicates a problem with the hybrid battery management system.
P1FD1
P1FD1 indicates a performance issue with the hybrid battery system.
P1FD2
P1FD2 indicates a problem with the powertrain control module, affecting vehic...
P1FD3
P1FD3 indicates a problem with the hybrid battery management system.
P1FD4
P1FD4 signifies a malfunction in the hybrid powertrain's control module,
P1FD5
P1FD5 indicates a fault in the hybrid powertrain control module or battery sy...
P1FD6
DTC P1FD6 indicates a malfunction with the hybrid battery temperature sensor.
P1FD7
Indicates an issue with the vehicle's hybrid battery management system.
P1FD8
P1FD8 indicates a malfunction in the hybrid battery pack.
P1FD9
DTC P1FD9 indicates a performance issue with the hybrid battery pack.
P1FDA
The P1FDA code indicates a fuel system or emissions system issue in your vehi...
P1FDB
P1FDB indicates a malfunction in the hybrid energy management system.
P1FDC
P1FDC indicates a hybrid powertrain issue, often related to battery performance.
P1FDD
The P1FDD code indicates a hybrid battery performance issue in vehicles,
P1FDE
P1FDE indicates a fault in the hybrid powertrain system, often related to the...
P1FDF
P1FDF indicates a malfunction in the hybrid battery system of your vehicle.
P1FE0
P1FE0 indicates a performance issue with the Powertrain Control Module (PCM).
P1FE1
P1FE1 indicates a problem with the hybrid battery temperature sensor.
P1FE2
The diagnostic trouble code (DTC) P1FE2 indicates a malfunction associated wi...
P1FE3
P1FE3 indicates a voltage error in the hybrid battery system.
P1FE4
P1FE4 indicates a fault in the hybrid powertrain control module,
P1FE5
DTC P1FE5 signifies a malfunction in the fuel pump control circuit.
P1FE6
P1FE6 indicates a malfunction in the powertrain control module related to hyb...
P1FE7
DTC P1FE7 refers to a malfunction in the hybrid system's control module,
P1FE8
P1FE8 indicates a malfunction in the hybrid control system, affecting battery...
P1FE9
P1FE9 indicates a problem with the hybrid powertrain control module in certai...
P1FEA
P1FEA indicates a performance issue with the Powertrain Control Module.
P1FEB
P1FEB indicates a hybrid battery voltage error related to the battery managem...
P1FEC
P1FEC indicates a fuel pressure regulator performance issue, leading to poten...
P1FED
DTC P1FED indicates a communication error between vehicle control modules.
P1FEE
P1FEE indicates a fault in the hybrid battery management system.
P1FEF
P1FEF indicates a malfunction in the fuel or emissions system.
P1FF0
P1FF0 indicates a hybrid battery management issue.
P1FF1
P1FF1 indicates a problem with the hybrid battery pack, which can affect vehi...
P1FF2
The P1FF2 code indicates a problem with the hybrid powertrain control module,...
P1FF3
P1FF3 indicates a malfunction in the hybrid powertrain, specifically relating...
P1FF4
P1FF4 indicates an issue with the hybrid battery control system.
P1FF5
P1FF5 indicates a malfunction in the Powertrain Control Module (PCM).
P1FF6
P1FF6 indicates a battery management system issue, typically related to the b...
P1FF7
P1FF7 indicates an issue with the hybrid battery management system.
P1FF8
P1FF8 indicates a performance issue with the fuel control module,
P1FF9
P1FF9 indicates a fault in the hybrid battery management system.
P1FFA
P1FFA indicates a hybrid battery performance issue in Toyota vehicles.
P1FFB
DTC P1FFB indicates a fault in the Vehicle Control Module's communication,
P1FFC
P1FFC indicates a fault with the fuel pump control module, affecting fuel del...
P1FFD
P1FFD indicates a fault in the hybrid battery management system of your vehicle.
P1FFE
P1FFE indicates a malfunction in the hybrid battery management system.
P1FFF
P1FFF indicates a fault in the electric power steering system,

P20XX Engine Control System

P2000
DTC P2000 indicates an issue with the efficiency of the NOx adsorber in your ...
P2001
P2001 indicates a malfunction in the intake manifold runner control system,
P2002
P2002 indicates that the diesel particulate filter is not working effectively.
P2003
P2003 indicates that the intake manifold runner control is stuck open,
P2004
Indicates there is an issue with the intake manifold runner control (IMRC) sy...
P2005
The P2005 code indicates a malfunction in the intake manifold runner control ...
P2006
P2006 indicates that the intake manifold runner control is stuck closed,
P2007
The P2007 code indicates that the intake manifold runner control is stuck ope...
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