LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2003 >> 6 s, Automatic >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Engine Performance (2.3L) DTCS
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Performance (2.3L) DTCS

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC Description
P0011 CMP Timing - Over Advanced
P0012 CMP Timing - Over Retarded
P0031 Front HO2S Heater Circuit - Low Input
P0032 Front HO2S Heater Circuit - High Input
P0037 Rear HO2S Heater Circuit - Low Input
P0038 Rear HO2S Heater Circuit - High Input
P0101 Mass Airflow/Intake Air Temperature Sensor Inconsistent With Throttle Position Sensor Or engine Speed
P0102 Mass Airflow/Intake Air Temperature Sensor Circuit - Low Input
P0103 Mass Airflow/Intake Air Temperature Sensor Circuit - High Input
P0106 Manifold Absolute Pressure Sensor - Performance Problem
P0107 Manifold Absolute Pressure Sensor Circuit - Low Input
P0108 Manifold Absolute Pressure Sensor Circuit - High Input
P0111 Mass Airflow/Intake Air Temperature Sensor Circuit - Performance Problem
P0112 Mass Airflow/Intake Air Temperature Sensor Circuit - Low Input
P0113 Mass Airflow/Intake Air Temperature Sensor Circuit - High Input
P0117 Engine Coolant Temperature Sensor Circuit - Low Input
P0118 Engine Coolant Temperature Sensor Circuit - High Input
P0122 Throttle Position Sensor - Low Input
P0123 Throttle Position Sensor - High Input
P0125 Excessive Time To Enter Close Loop
P0126 Coolant Thermostat - Stuck Open
P0128 Coolant Thermostat - Stuck Open
P0131 Front HO2S - Stuck Low
P0132 Front HO2S - Stuck High
P0133 Front HO2S Circuit - Malfunction
P0134 Front HO2S Circuit - No Activity Detected
P0137 Rear HO2S Circuit - Low Input
P0138 Rear HO2S Circuit - High Input
P0140 Rear HO2S Circuit - No Activity Detected
P0171 Fuel Trim System - Too Lean
P0172 Fuel Trim System - Too Rich
P0222 Throttle Position Sensor No. 2 Circuit - Low Input
P0223 Throttle Position Sensor No. 2 Circuit - High Input
P0300 Random Misfire Detection
P0301 Cylinder No. 1 Misfire Detection
P0302 Cylinder No. 2 Misfire Detection
P0303 Cylinder No. 3 Misfire Detection
P0304 Cylinder No. 4 Misfire Detection
P0327 Knock Sensor Circuit - Low Input
P0328 Knock Sensor Circuit - High Input
P0335 Crankshaft Position Sensor Circuit - Malfunction
P0340 Camshaft Position Sensor Circuit - Malfunction
P0401 EGR Flow Insufficient Detected
P0402 EGR Flow Excessive Detected
P0403 EGR Valve (Stepper Motor) Circuit - Malfunction
P0420 Catalyst System Efficiency - Below Threshold
P0441 Evaporative Emission Control System - Incorrect Purge Flow
P0442 Evaporative Emission Control System - Small Leak
P0443 Evaporative Emission Control System Purge Solenoid Valve Circuit - Malfunction
P0446 Evaporative Emission System Vent Control - Malfunction
P0455 Evaporative Emission Control System Leak Detected - Gross Leak
P0456 Evaporative Emission Control System Leak Detected - Very Small
P0461 Fuel Gauge Sender Unit Circuit Range/Performance
P0462 Fuel Gauge Sender Unit Circuit - Low Input
P0463 Fuel Gauge Sender Unit Circuit - High Input
P0480 Fan Relay No. 1 Control Circuit - Malfunction
P0481 Fan Relay No. 2 & No. 3 Control Circuit - Malfunction
P0482 Fan Relay No. 4 Control Circuit - Malfunction
P0500 Vehicle Speed Sensor Circuit - Malfunction
P0505 Idle Control System - Malfunction
P0506 Idle Control System - RPM Lower Than Expected
P0507 Idle Control System - RPM Greater Than Expected
P0550 Power Steering Pressure Switch Circuit - Malfunction
P0564 Cruise Control Switch - Malfunction
P0571 Brake Switch Circuit - Malfunction
P0601 Internal Control Module Memory Check Sum Error
P0602 PCM Programming Error
P0604 PCM RAM Error
P0606 ECM/PCM Processor
P0607 Control Module Performance
P0610 Control Module Vehicle Options Error
P0638 Throttle Actuator Control Range/Performance
P0661 Variable Intake-Air System Control Solenoid Valve Circuit - Low Input
P0662 Variable Intake-Air System Control Solenoid Valve Circuit - High Input
P0703 Brake Switch No. 1 Circuit - Malfunction
P0704 Clutch Switch Circuit - Malfunction
P0850 Neutral Switch Circuit - Malfunction
P1410 Variable Air Duct Control System Circuit - Malfunction
P1562 TCM +BB Voltage - Low
P2004 Variable Tumble Control System Shutter Valve - Stuck Open
P2006 Variable Tumble Control System Shutter Valve - Stuck Closed
P2009 Variable Tumble Control System Solenoid Valve Circuit - Low Input
P2010 Variable Tumble Control System Solenoid Valve Circuit - High Input
P2088 Oil Control Valve Actuator Circuit - Low Input
P2089 Oil Control Valve Actuator Circuit - High Input
P2100 Throttle Actuator Circuit - Open
P2101 Throttle Actuator Circuit - Range/Performance
P2102 Throttle Actuator Circuit - Low Input
P2103 Throttle Actuator Circuit - High Input
P2107 Throttle Actuator Control Module Processor
P2108 Throttle Actuator Control Module - Performance
P2119 Throttle Actuator Control Throttle Body - Range/Performance
P2122 Accelerator Pedal Position Sensor No. 1 Circuit - Low Input
P2123 Accelerator Pedal Position Sensor No. 1 Circuit - High Input
P2127 Accelerator Pedal Position Sensor No. 2 Circuit - Low Input
P2128 Accelerator Pedal Position Sensor No. 2 Circuit - High Input
P2135 Throttle Position Sensor No. 1/No. 2 - Voltage Correlation
P2138 Accelerator Pedal Position Sensor No. 1/No. 2 - Voltage Correlation
P2228 BARO Sensor Circuit - Low Input
P2229 BARO Sensor Circuit - High Input
P2401 Evaporative Emission System Leak Detection Pump Control Circuit - Low Input
P2402 Evaporative Emission System Leak Detection Pump Control Circuit - High Input
P2404 Evaporative Emission System Leak Detection Pump Sense Circuit - Malfunction
P2405 Evaporative Emission System Leak Detection Pump Sense Circuit - Low Input
P2406 Evaporative Emission System Leak Detection Pump Sense Circuit - High Input
P2407 Evaporative Emission System Leak Detection Pump Sense Circuit - Intermittent
P2502 Generator Terminal B Circuit - Open
P2503 Generator Output Voltage Signal - No Electricity
P2504 Battery - Overcharge
U0073 CAN System Communication Error
U0100 Communication Error To PCM
U0121 Communication Error To ABS/TCS HU/CM
U0155 Communication Error To Instrument Cluster
U1900 CAN System Communication Error
U2516 CAN System Wiring Harness Open Or Short