Search the OBD trouble codes below, or browse the full list.

Full list#

• 0 - ECU - Faulty ECU Or ECU ROM
• 1 - O2A - Oxygen Sensor #1
• 2 - O2B - Oxygen Sensor #2
• 3 - MAP - Manifold Absolute Pressure Sensor
• 4 - CKP - Crank Position Sensor
• 5 - MAP - Manifold Absolute Pressure Sensor
• 6 - ECT - Water Temperature Sensor
• 7 - TPS - Throttle Position Sensor
• 8 - TDC - Top Dead Centre Sensor
• 9 - CYP - Cylinder Sensor
• 10 - IAT - Intake Air Temperature Sensor
• 11 - Engine Overheating
• 12 - EGR - Exhaust Gas Recirculation Lift Valve
• 13 - BARO - Atmospheric Pressure Sensor
• 14 - IAC (EACV) - Idle Air Control Valve
• 15 - Ignition Output Signal
• 16 - Fuel Injectors
• 17 - VSS - Vehicle Speed Sensor
• 19 - Automatic Transmission Lockup Control Valve
• 20 - ELD - Electrical Load Detector
• 21 - VTEC Spool Solenoid Valve
• 22 - VTEC Pressure Valve
• 23 - Knock Sensor
• 30 - Automatic Transmission A Signal
• 31 - Automatic Transmission B Signal
• 36 - Traction Control Found On Some JDM ECUs
• 38 - Secondary VTEC Solenoid On JDM 3 Stage D15B VTEC ECUs (P2J)
• 41 - Primary Oxygen Sensor Heater
• 43 - Fuel Supply System
• 45 - Fuel System Too Rich Or Lean
• 48 - LAF - Lean Air Fuel Sensor
• 54 - CKF - Crank Fluctuation Sensor
• 58 - TDC Sensor #2
• 61 - Primary Oxygen Sensor
• 63 - Secondary Oxygen Sensor Circuit
• 65 - Secondary Oxygen Sensor Heater Wire (Black Wires)
• 67 - Catalytic Converter
• 71 - Random Misfire Cylinder 1
• 72 - Random Misfire Cylinder 2
• 73 - Random Misfire Cylinder 3
• 74 - Random Misfire Cylinder 4
• 80 - EGR Valve/Line
• 86 - ECT Sensor - Cooling System
• 91 - Fuel Tank Pressure Sensor
• 92 - EVAP Solenoid/Valve/Vacuum Lines

OBD1 TCU CODES#

• 1 - Lock Up Solenoid ' A' Circuit Open Or Shorted
• 2 - Lock Up Solenoid ' B' Circuit Open Or Shorted
• 3 - Throttle Position Sensor Circuit Open Or Shorted
• 4 - Vehicle Speed Sensor Open Or Shorted No Signal From Speedometer
• 5 - Shift Lever Position Switch Circuit Shorted
• 6 - Shift Lever Position Switch Circuit Open
• 7 - Shift Solenoid 'A' Circuit Open Or Shorted
• 8 - Shift Solenoid 'B' Circuit Open Or Shorted
• 9 - Counter Shaft Or Transmission Speed Pulse Generator Open Or Shorted
• 10 - Coolant Temperature Sensor Open Or Shorted
• 11 - Engine Rpm ( Ignition Coil Signal) Open Or Shorted
• 12 - ( No Code 12 Used)
• 13 - Main Shaft Speed Pulse Generator Open Or Shorted
• 14 - Linear (line Pressure Control) Solenoid Open Or Shorted
• 15 - Kick Down Switch Circuit Shorted