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 2801-2900 of 4123 total codes

P0AXX Engine Control System

P0AF0
P0AF0 indicates a cooling performance issue with the hybrid battery pack.
P0AF1
Indicates a problem with the hybrid battery cooling system performance.
P0AF2
P0AF2 indicates a hybrid battery pack performance issue.
P0AF3
P0AF3 indicates a problem with your hybrid battery pack's cooling system perf...
P0AF4
The diagnostic trouble code P0AF4 indicates a hybrid battery pack performance...
P0AF5
DTC P0AF5 indicates a problem with the hybrid battery cooling system.
P0AF6
P0AF6 indicates a cooling performance issue with the hybrid battery pack.
P0AF7
P0AF7 indicates a fault in the hybrid energy management system,
P0AF8
The P0AF8 code refers to a voltage sensor range or performance problem in the...
P0AF9
The P0AF9 code indicates a hybrid battery cooling performance issue.
P0AFA
P0AFA indicates an issue with the battery current sensor's readings.
P0AFB
P0AFB indicates a fault in the electric motor assembly of hybrid vehicles,
P0AFC
P0AFC indicates a malfunction in the hybrid battery temperature sensor range ...
P0AFD
DTC P0AFD indicates a low performance issue with the hybrid battery pack,
P0AFE
P0AFE signifies a malfunction in the battery cooling system for hybrid vehicles.
P0AFF
P0AFF indicates a fault in the hybrid battery management system.

P0BXX Engine Control System

P0B00
P0B00 refers to a hybrid battery pack issue, commonly seen in hybrid vehicles.
P0B01
DTC P0B01 indicates a fault in the battery energy control module in hybrid ve...
P0B02
P0B02 indicates a performance problem with the hybrid battery voltage sensor.
P0B03
P0B03 indicates a voltage measurement issue with the hybrid battery pack.
P0B04
The P0B04 code signifies a problem with the hybrid battery pack voltage senso...
P0B05
DTC P0B05 signifies a problem with the hybrid battery current sensor's perfor...
P0B06
P0B06 indicates a performance issue with the Battery Energy Control Module in...
P0B07
DTC P0B07 indicates a hybrid battery voltage measurement issue.
P0B08
P0B08 indicates a voltage error in the hybrid battery pack, affecting vehicle...
P0B09
P0B09 indicates a hybrid battery pack voltage issue, typically affecting Toyo...
P0B0A
P0B0A indicates a performance issue with the Battery Energy Control Module in...
P0B0B
DTC P0B0B indicates a malfunction in the hybrid battery voltage sensing system.
P0B0C
P0B0C indicates a malfunction in the Battery Energy Control Module (BECM) of ...
P0B0D
P0B0D indicates a problem with the hybrid battery voltage sensor performance ...
P0B0E
P0B0E indicates a malfunction in the hybrid battery control system.
P0B0F
P0B0F signifies a hybrid battery performance issue, affecting power and effic...
P0B10
P0B10 indicates a problem with the hybrid battery temperature sensor circuit.
P0B11
DTC P0B11 indicates a fault with the hybrid battery temperature sensor,
P0B12
P0B12 indicates a cooling system issue for the battery pack in hybrid vehicles.
P0B13
P0B13 indicates a performance issue with the hybrid battery voltage sensor.
P0B14
P0B14 indicates a problem with the battery voltage sensor circuit in hybrid v...
P0B15
P0B15 signals a problem with the hybrid battery pack temperature sensor perfo...
P0B16
P0B16 indicates a performance problem with the battery pack voltage sensor in...
P0B17
DTC P0B17 indicates a battery performance issue in hybrid vehicles.
P0B18
P0B18 indicates a malfunction in the hybrid battery pack, primarily affecting...
P0B19
P0B19 indicates a failure in the battery current sensor of hybrid vehicles.
P0B1A
Indicates a performance issue with the hybrid battery voltage sensor range.
P0B1B
P0B1B indicates a hybrid battery performance problem.
P0B1C
P0B1C indicates a hybrid battery pack voltage issue.
P0B1D
P0B1D indicates a performance issue with the Battery Energy Control Module in...
P0B1E
P0B1E signifies a performance issue with the Battery Energy Control Module in...
P0B1F
P0B1F indicates a hybrid battery performance issue in your vehicle.
P0B20
P0B20 means there is a problem with the hybrid battery pack's condition in yo...
P0B21
The P0B21 code indicates a malfunction in the battery pack current sensor,
P0B22
P0B22 indicates a battery pack temperature sensor problem in hybrid vehicles.
P0B23
Indicates a problem with the hybrid battery voltage sensor range or performan...
P0B24
P0B24 indicates a voltage discrepancy in the hybrid battery pack.
P0B25
DTC P0B25 signifies a problem with the hybrid battery pack voltage sensor in ...
P0B26
DTC P0B26 indicates a fault in the hybrid battery temperature sensor circuit.
P0B27
P0B27 indicates a malfunction in the hybrid battery pack voltage,
P0B28
P0B28 indicates a malfunction with the hybrid battery temperature sensor.
P0B29
The P0B29 code indicates a problem with the electric vehicle battery pack's c...
P0B2A
DTC P0B2A signifies a voltage sensor issue in the hybrid battery pack,
P0B2B
The P0B2B code signifies a hybrid battery voltage sensor issue,
P0B2C
P0B2C signifies a malfunction in the Battery Energy Control Module of hybrid ...
P0B2D
P0B2D indicates a high voltage issue in the hybrid battery pack.
P0B2E
DTC P0B2E indicates a voltage sensor issue in the hybrid battery pack.
P0B2F
P0B2F indicates a hybrid battery voltage sensor problem.
P0B30
DTC P0B30 indicates a malfunction in the hybrid battery pack of a vehicle,
P0B31
P0B31 indicates a hybrid battery voltage issue, often linked to battery failure.
P0B32
P0B32 indicates a malfunction in the hybrid battery voltage sensor circuit.
P0B33
P0B33 indicates a temperature sensor range issue in hybrid battery packs.
P0B34
P0B34 indicates a hybrid battery pack issue in vehicles like the Toyota Prius.
P0B35
P0B35 indicates a battery pack cooling system performance issue in hybrid veh...
P0B36
P0B36 indicates a fault in the hybrid battery pack cooling system.
P0B37
P0B37 indicates a performance problem with the Battery Energy Control Module ...
P0B38
P0B38 indicates a high voltage isolation fault in the hybrid battery pack,
P0B39
P0B39 indicates a malfunction in the battery energy control module of hybrid ...
P0B3A
P0B3A indicates a battery current sensor issue in hybrid vehicles.
P0B3B
P0B3B indicates a hybrid battery performance issue, often seen in vehicles li...
P0B3C
DTC P0B3C indicates a hybrid battery pack performance issue in vehicles like ...
P0B3D
The P0B3D code means there's a voltage sensor issue in the hybrid battery pack.
P0B3E
P0B3E indicates a hybrid battery pack imbalance, affecting performance.
P0B3F
DTC P0B3F indicates an issue with the battery temperature sensor in hybrid ve...
P0B40
The P0B40 code indicates a performance issue with the hybrid battery pack.
P0B41
P0B41 indicates a voltage issue in the hybrid battery pack.
P0B42
The P0B42 code indicates a malfunction with the battery pack temperature sens...
P0B43
P0B43 indicates a problem with the hybrid battery temperature sensor.
P0B44
P0B44 indicates a fault with the hybrid battery voltage sensor or the battery...
P0B45
DTC P0B45 indicates a voltage imbalance in the hybrid battery system.
P0B46
P0B46 indicates a range/performance issue with the hybrid battery voltage sen...
P0B47
P0B47 indicates a hybrid battery pack voltage issue, affecting performance.
P0B48
P0B48 indicates a problem with the voltage sensor in the hybrid battery pack.
P0B49
P0B49 indicates a performance issue with the hybrid battery pack.
P0B4A
DTC P0B4A indicates a voltage issue in the hybrid battery management system.
P0B4B
P0B4B indicates a malfunction in the hybrid battery pack, affecting its perfo...
P0B4C
P0B4C indicates a malfunction in the hybrid battery pack temperature sensor.
P0B4D
P0B4D indicates a problem with the hybrid battery pack current sensor.
P0B4E
P0B4E indicates a high voltage battery voltage sensor issue in hybrid vehicles.
P0B4F
P0B4F indicates a hybrid battery performance issue.
P0B50
P0B50 signifies a voltage imbalance in the hybrid battery pack,
P0B51
P0B51 indicates a hybrid battery pack voltage measurement error.
P0B52
P0B52 indicates a voltage sensor problem in the hybrid battery pack,
P0B53
P0B53 indicates a battery voltage issue in hybrid vehicles.
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