Mazda3 Check Engine Light ( CEL ) List

DTC No. / Condition / Malfunction Indicator Lamp
P0031 Front HO2S heater circuit low input / ON
P0032 Font HO2S heater circuit high input / ON
P0037 Rear HO2S heater circuit low input / ON
P0038 Rear HO2S heater circuit high input / ON
P0101 MAF sensor circuit range/performance problem/ ON
P0102 MAF sensor circuit low input / ON
P0103 MAF sensor circuit high input / ON
P0107 MAP sensor circuit low input / ON
P0108 MAP sensor circuit high input /ON
P0111 IAT sensor circuit rnge/performance problem /ON
P0112 IAT sensor circuit low input /ON
P0113 IAT sensor circuit high input /ON
P0117 ECT sensor circuit low input /ON
P0118 ECT sensor circuit high input /ON
P0121 TP sensor stuck closed / ON
P0122 TP sensor circuit low input /ON
P0123 TP sensor circuit high input /ON
P0125 Excessive time to enter closed loop fuel control / ON
P0132 Front HO2S circuit high input /ON
P0133 Front HO2S circuit problem / ON
P0134 Front HO2S no activity detected /ON
P0138 Rear HO2S circuit high input /ON
P0140 Rear HO2S no activity detected /ON
P0300 Random misfire detected / Flash/ON
P0301 Cylinder No.1 misfire detected / Flash/ON
P0302 Cylinder No.2 misfire detected / Flash/ON
P0303 Cylinder No.3 misfire detected / Flash/ON
P0304 Cylinder No.4 misfire detected / Flash/ON
P0327 KS circuit low input /ON
P0328 KS circuit high input /ON
P0335 CKP sensor circuit problem /ON
P0340 CMP sensor circuit problem /ON
P0403 EGR valve (stepper motor) circuit problem /ON
P0420 Catalyst system efficiency below threshold /ON
P0443 Purge solenoid valve circuit problem /ON
P0480 Cooling fan control circuit problem /OFF
P0500 VSS circuit problem /ON
P0505 IAC system problem /OFF
P0506 Idle control system RPM lower than expected /ON
P0507 Idle control system RPM higher than expected /ON
P0511 IAC valve circuit problem /ON
P0602 PCM programming error /ON
P0610 PCM vehicle options error /ON
P0661 Variable intake-air solenoid valve circuit low input /OFF
P0662 Variable intake-air solenoid valve circuit high input /OFF
P0703 Brake switch input circuit problem /ON
P0704 CPP switch input circuit problem /ON
P0706 Transaxle range (TR) switch circuit range/performance
P0707 Transaxle range (TR) switch circuit low input
P0708 Transaxle range (TR) switch circuit high input
P0711 Transaxle fluid temperature (TFT) sensor circuit range/performance (stuck)
P0712 Transaxle fluid temperature (TFT) sensor circuit malfunction (short to ground)
P0713 Transaxle fluid temperature (TFT) sensor circuit malfunction (open circuit)
P0715 Input/turbine speed sensor circuit malfunction
P0731 Gear 1 incorrect (incorrect gear ratio detected)
P0732 Gear 2 incorrect (incorrect gear ratio detected)
P0733 Gear 3 incorrect (incorrect gear ratio detected)
P0734 Gear 4 incorrect (incorrect gear ratio detected)
P0741 Torque converter clutch (TCC) (stuck off)
P0742 Torque converter clutch (TCC) (stuck on)
P0745 Pressure control solenoid malfunction
P0751 Shift solenoid A stuck off
P0752 Shift solenoid A stuck on
P0753 Shift solenoid A malfunction (electrical)
P0756 Shift solenoid B stuck off
P0757 Shift solenoid B stuck on
P0758 Shift solenoid B malfunction (electrical)
P0761 Shift solenoid C stuck off
P0762 Shift solenoid C stuck on
P0763 Shift solenoid C malfunction (electrical)
P0766 Shift solenoid D stuck off
P0767 Shift solenoid D stuck on
P0768 Shift solenoid D malfunction (electrical)
P0771 Shift solenoid E stuck off
P0772 Shift solenoid E stuck on
P0773 Shift solenoid E malfunction (electrical)
P0850 Neutral switch input circuit problem /ON
P0894 Forward clutch torque transmission
P1260 Immobilizer system problem /OFF
P2006 Variable tumble shutter valve stuck closed /ON
P2009 Variable tumble solenoid valve circuit low input /ON
P2010 Variable tumble solenoid valve circuit high input /ON
P2096 Target A/F feedback system too lean /ON
P2097 Target A/F feedback system too rich /ON
P2177 Fuel system too lean at off idle /ON
P2178 Fuel system too rich at off idle /ON
P2187 Fuel system too lean at idle /ON
P2188 Fuel system too rich at idle /ON
P2195 Front HO2S signal stuck lean /ON
P2196 Front HO2S signal stuck rich /ON
P2228 BARO sensor circuit low input /ON
P2229 BARO sensor circuit high input /ON
P2502 Charging system voltage problem /OFF
P2503 Charging system voltage low /OFF
P2504 Charging system voltage high /OFF
P2507 PCM B+ voltage low /ON
U0073 CAN system communication error
U0121 Communication error to ABS HU/CM
U0155 Communication error to instrument cluster