OBD Codes Site Map

OBD Trouble Code Articles

• P0100 MAF Circuit Malfunction
• P0101 MAF Circuit Range Problem
• P0102 - Mass Air Flow Circuit Low Input
• P0103 - Mass or Volume Air Flow Circuit High Input
• P0104 - Mass or Volume Air Flow Circuit Intermittent
• P0122 Throttle Position Sensor/Switch A Circuit Low Input
• P0123 - Throttle Position Sensor A Circuit High Input
• P0132 - Oxygen O2 Sensor Circuit High Voltage (Bank 1, Sensor 1)e
• P0133 - Oxygen O2 Sensor Slow Response (Bank 1, Sensor 1)
• P0139 - Oxygen O2 Sensor Circuit Slow Response (Bank 1, Sensor 2)
• P0153 - Oxygen O2 Sensor Circuit Slow Response (Bank 2, Sensor 1)
• P0159 - Oxygen O2 Sensor Circuit Slow Response (Bank 2, Sensor 2)
• P0300 - Random/Multiple Cylinder Misfire Detected
• P0301 - Cylinder #1 Misfire Detected
• P0302 - Cylinder #2 Misfire Detected
• P0303 - Cylinder #3 Misfire Detected
• P0304 - Cylinder #4 Misfire Detected
• P0305 - Cylinder #5 Misfire Detected
• P0306 - Cylinder #6 Misfire Detected
• P0307 - Cylinder #7 Misfire Detected
• P0308 - Cylinder #8 Misfire Detected
• P0309 - Cylinder #9 Misfire Detected
• P0310 - Cylinder #10 Misfire Detected
• P0311 - Cylinder #11 Misfire Detected
• P0312 - Cylinder #12 Misfire Detected
• P0420 - Catalyst Efficiency Below Threshold
• P0431 - Warm Up Catalyst Below Threshold
• P0440 Evaporative Emission Control System Malfunction
• P0500 - Variable Speed Sensor Malfunction
• OBD-II Bxxxx Body Codes
• OBD-II Cxxxx Chassis Codes
• OBD-II Uxxxx Network Codes
• Full List of OBD Trouble Codes

Ford OBD-II Trouble Codes

• Ford OBD-II Trouble Codes
• Ford P1151 - Lack of HO2S-21 Switch, Sensor Indicates Lean
• Ford P1451 - EVAP Control System Canister Vent Solenoid Circuit Malfunction

Subaru OBD Trouble Codes

• Subaru Trouble Codes
• Subaru OBD-II Trouble Codes
• 1996 & later - OBD-II Subaru Codes
• 1983 - 1988 Subaru Carbureted Vehicles
• 1984 - 1986 Subaru Fuel Injected Vehicles
• 1987 Subaru Fuel Injected Vehicles
• 1988 & later Subaru Vehicles with Single-Point Fuel Injection
• 1988 & later models with Multi-Point Fuel Injection (including Legacy)

GM OBD Codes

• GM OBD-II Trouble Codes
• GM 2 digit codes
• GM B - Body OBD-II Codes
• GM U - Network OBD2 Codes
• GM OBD Driving Cycle

Mazda OBD-II Trouble Codes

• Mazda OBD-II Trouble Codes

VW OBD-II Trouble Codes

• VW Volkswagen OBD-II Trouble Codes

OBD-II Product Diretory & Reviews

• Actron CP9150 Super AutoScanner Technician Kit
• KAL Pro Scan Tool KM9640
• Auto X-Ray Code Scout 1500
• Actron PocketScan Automotive Code Reader 9125
• OTC Stinger OBD-II Code Reader (OTC3769)
• Equus OBD II Code Reader
• Actron CP9135 OBDII AutoScanner
• Linear-Logic ScanGauge
• Auto Enginuity Scan Tool
• OBD2.com EASE PC Based Scan Tool
• Car Code OBDII Automotive Scan Tool and Virtual Dashboard
• Auterra Dyno-Scan for Windows
• BR BR-3 OBD-II Scan Tool
• ScanTool.net ElmScan VPW J1850
• ScanTool.net ElmScan ISO 9141-2/14230-4
• ScanTool.net ElmScan 5
• AutoXray AXY-10120: Computer and Sensor Testing Tool, Code Reader
• CarPlugs.com OBD2 Connectors (Parts)
• AutoXray EZ-Scan 6000
• Davis CarChip
• AutoXray EZ-Read 2000
• Equus CanOBD2 Code Reader
• CarChip E/X with Alarm CAN/OBD II Data Logger
• Ross-Tech VAG-COM Diagnostic Software
• PocketPCDyno
• FreeDiag - Vehicle Diagnostics Suite
• OBD Graph for Windows
• OBD Gauge for Pocket PC
• OBD Gauge for PalmOS
• Innova Code Reading Guide for Chrysler, Dodge, Plymouth
• Equus Import Code Reader
• Make Waves Dual Function Computer Decoder
• Equus Digital Ford Code Reader
• Equus Ford Code Reader
• Equus GM Code Reader
• TTS Power Systems Datamaster Powertrain Diagnostics System
• Haynes Techbook Manuals - Automotive Computer Codes
• Autodata 2003 Edition Domestic Trouble Code Manual (03340)
• Introduction to On-Board Diagnostics II (OBDII)
• Getting to Know OBD II
• OBD II Diagnostic Secrets Revealed
• OBD II Fault Codes Reference Guide
• Vital Engineering Car-Pal OBD Interface Unit
• Multiplex Engineering OBD-II Interfaces
• AutoTap AutoTap for Windows
• OBD Diagnostics Inc. OBD2AllInOne.com
• TekMate OBD-II Scan Tool
• DIYDiagnostics.com OBDII Scanner
• Palmer PCMScan

OBD-II Code Reader Store

• Actron 9125 PocketScan Code Reader
• Equus CanOBD2 Code Reader
• Actron CP9135 OBDII AutoScanner
• Actron CP9145 Super AutoScanner
• Books
  • OBD II Diagnostic Secrets Revealed
  • OBD II Fault Codes Reference Guide
  • Getting to Know OBD II

OBD Codes Forum Archive

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Frequently Asked Questions

• What is OBD?
• Do I have an OBD-II vehicle?
• OBD-II Codes Explained
• How do I reset the "Check Engine" Light?
• How to read OBD codes for free on older GM vehicles (82-95?)
• What is an OBD-II Code Reader?
• Added FAQ: What OBD-II Communication Protocols Are There? (Sept 27/05)
• Glossary of Terms / OBD Definitions
• Index of Frequently Asked OBD Questions
• The EGR System Explained (Exhaust Gas Recirculation)

OBD Codes Sections

• 2002 Chevy Corvette Codes
• Ford OBD-II Trouble Codes
• Subaru OBD-II Trouble Codes
• Chevrolet OBD-II Trouble Codes

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