LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2000 >> Millenia Millennium Edition >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 2.3L >> Diagnostic Trouble Code Tests >> Diagnostic Trouble Code Identification Table
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Code Identification Table

DIAGNOSTIC TROUBLE CODE IDENTIFICATION

DTC Description
P0100  MASS Airflow (MAF) Sensor Circuit Malfunction
P0105  Manifold Absolute Pressure (MAP) Sensor Circuit Malfunction
P0110  Intake Air Temperature (IAT) Sensor Circuit Malfunction
P0115  Engine Coolant Temperature (ECT) Sensor Circuit Malfunction
P0120  Throttle Position (TP) Sensor Circuit Malfunction
P0125  Excessive Time To Enter Closed Loop
P0130  Right Front Heated Oxygen Sensor Malfunction
P0134  Right Front Heated Oxygen Sensor, Insufficient Activity Detected
P0135  Right Front Heated Oxygen Sensor Heater Malfunction
P0138  Right Rear Heated Oxygen Sensor Circuit High Voltage
P0140  Right Rear Heated Oxygen Sensor, Insufficient Activity Detected
P0141  Right Rear Heated Oxygen Sensor Heater Malfunction
P0150  Left Front Heated Oxygen Sensor Malfunction
P0154  Left Front Heated Oxygen Sensor, Insufficient Activity Detected
P0155  Left Front Heated Oxygen Sensor Heater Malfunction
P0158  Left Rear Heated Oxygen Sensor Circuit High Voltage
P0160  Left Rear Heated Oxygen Sensor, Insufficient Activity Detected
P0161  Left Rear Heated Oxygen Sensor Heater Malfunction
P0170  Bank No. 1, Fuel Trim Malfunction
P0173  Bank No. 2, Fuel Trim Malfunction
P0300  Random Misfire Detected
P0301  Cylinders No. 1 Misfire Detected
P0302  Cylinders No. 2 Misfire Detected
P0303  Cylinders No. 3 Misfire Detected
P0304  Cylinders No. 4 Misfire Detected
P0305  Cylinders No. 5 Misfire Detected
P0306  Cylinders No. 6 Misfire Detected
P0325  Knock Sensor No. 1 Circuit Malfunction
P0335  Crankshaft Position Sensor Circuit Malfunction
P0400  EGR Flow Malfunction
P0404  EGR Range/Performance Malfunction
P0421  Bank No. 1 Right Bank Warm Up Catalyst System Efficiency Below Limit
P0431  Bank No. 2 Right Bank Warm Up Catalyst System Efficiency Below Limit
P0442  EVAP System Malfunction, Leak Detected
P0443  EVAP System, Purge Control Valve Circuit Malfunction
P0450  EVAP System Pressure Sensor Malfunction
P0455  EVAP System Malfunction, Excessive Leak Detected
P0464  Fuel Gauge Sending Unit Circuit Intermittent Malfunction
P0500  Vehicle Speed Sensor (VSS) Malfunction
P0510  Closed Throttle Position Switch Malfunction
P0550  Power Steering Switch Malfunction
P0703  Brake Switch Malfunction
P1110  Intake Air Temperature (IAT) Sensor Dynamic Chamber, Open Or Short Circuit
P1113  Intake Air Temperature (IAT) Sensor Lysholm Compressor, Open Or Short Circuit
P1170  Right Front Heated Oxygen Sensor, Inversion
P1173  Left Front Heated Oxygen Sensor, Inversion
P1196  Starter Switch, Open Or Short Circuit
P1250  Pressure Regulator Control (PRC) Solenoid Valve Malfunction
P1345  Camshaft Position Sensor, No SGC Signal
P1402  EGR Valve Position Sensor, Open Or Short Circuit
P1449  Canister Drain Cut Valve (CDCV), Open Or Short Circuit
P1450  EVAP System, Leak Down
P1455  Fuel Tank Level Sensor, Open Or Short Circuit
P1487  Manifold Absolute Pressure (MAP) Sensor Solenoid Valve, Open Or Short Circuit
P1508  By-Pass Air Solenoid Valve, Open Or Short Circuit
P1524  Charge Air Cooler By-Pass Solenoid Valve, Open Or Short Circuit
P1525  Air By-Pass Solenoid Valve (Vacuum), Open Or Short Circuit
P1526  Air By-Pass Solenoid Valve (Vent), Open Or Short Circuit
P1540  Air By-Pass System, Open Or Short Circuit
P1601  Communication Line Error (Automatic Transmission)
P1609  Powertrain Control Module (PCM) Malfunction
P1627  Powertrain Control Module (PCM)/Traction Control System (TCS) Line Communication Error
P1628  Powertrain Control Module (PCM)/Traction Control System (TCS) Line Communication Error
P1794  Battery Supply Circuit Malfunction