Mazda 6i I4 (L3) Cel Codes

DTC No. Condition MIL DC Monitor item Memory function Page

P0011 CMP timing over-advanced ON 2 CCM (See DTC P0011)
P0012 CMP timing over-retarded ON 2 CCM (See DTC P0012)
P0031 Front HO2S heater circuit low input ON 2 O2 sensor heater (See DTC P0031)
P0032 Front HO2S heater circuit high input ON 2 O2 sensor heater (See DTC P0032)
P0037 Rear HO2S heater circuit low input ON 2 O2 sensor heater (See DTC P0037)

P0038 Rear HO2S heater circuit high input ON 2 O2 sensor heater (See DTC P0038)
P0101 MAF sensor inconsistent with TP sensor or engine speed ON 2 CCM (See DTC P0101)
P0102 MAF circuit low input ON 1 CCM (See DTC P0102)
P0103 MAF circuit high input ON 1 CCM (See DTC P0103)
P0106 MAP sensor performance problem ON 2 CCM (See DTC P0106)

P0107 MAP sensor circuit low input ON 1 CCM (See DTC P0107)
P0108 MAP sensor circuit high input ON 1 CCM (See DTC P0108)
P0111 IAT circuit performance problem ON 2 CCM (See DTC P0111)
P0112 IAT circuit low input ON 1 CCM (See DTC P0112)
P0113 IAT circuit high input ON 1 CCM (See DTC P0113)

P0117 ECT circuit low input ON 1 CCM (See DTC P0117)
P0118 ECT circuit high input ON 1 CCM (See DTC P0118)
P0122 TP sensor No.1 circuit low input ON 1 CCM (See DTC P0122)
P0123 TP sensor No.1 circuit high input ON 1 CCM (See DTC P0123)
P0125 Excessive time to enter closed loop fuel control ON 2 CCM (See DTC P0125)

P0126 Coolant thermostat stuck open ON 2 Thermostat (See DTC P0126, P0128)
P0128 Coolant thermostat stuck open ON 2 Thermostat (See DTC P0126, P0128)
P0131 Front HO2S (stuck low) ON 2 CCM (See DTC P0131, P0132)
P0132 Front HO2S (stuck high) ON 2 CCM (See DTC P0131, P0132)
P0133 Front HO2S circuit malfunction ON 2 O2 sensor (See DTC P0133)

P0134 Front HO2S circuit no activity detected ON 2 CCM (See DTC P0134)
P0137 Rear HO2S circuit low input ON 2 CCM (See DTC P0137)
P0138 Rear HO2S circuit high input ON 2 CCM (See DTC P0138)
P0140 Rear HO2S circuit no activity detected ON 2 CCM (See DTC P0140)
P0171 Fuel trim system too lean ON 2 Fuel (See DTC P0171)

P0172 Fuel trim system too rich ON 2 Fuel (See DTC P0172)
P0222 TP sensor No.2 circuit low input ON 1 CCM (See DTC P0222)
P0223 TP sensor No.2 circuit high input ON 1 CCM (See DTC P0223)
P0300 Random misfire detected Flash / ON 1 or 2 Misfire (See DTC P0300)

P0301 Cylinder No.1 misfire detected Flash / ON 1 or 2 Misfire (See DTC P0301 - 04)
P0302 Cylinder No.2 misfire detected Flash / ON 1 or 2 Misfire (See DTC P0301 - 04)
P0303 Cylinder No.3 misfire detected Flash / ON 1 or 2 Misfire (See DTC P0301- 04)
P0304 Cylinder No.4 misfire detected Flash / ON 1 or 2 Misfire (See DTC P0301- 04)

P0327 Knock sensor circuit low input ON 1 CCM (See DTC P0327)
P0328 Knock sensor circuit high input ON 1 CCM (See DTC P0328)
P0335 CKP sensor circuit malfunction ON 1 CCM (See DTC P0335)
P0340 CMP sensor circuit malfunction ON 1 CCM (See DTC P0340)
P0401 EGR flow insufficient detected ON 2 EGR (See DTC P0401)

P0402 EGR flow excessive detected ON 2 EGR (See DTC P0402)
P0403 EGR valve (stepper motor) circuit malfunction ON 2 CCM (See DTC P0403)
P0420 Catalyst system efficiency below threshold ON 2 Catalyst (See DTC P0420)
P0441 Evaporative emission control system incorrect purge flow ON 2 Evaporative (See DTC P0441)
P0442 Evaporative emission control system leak detected (small leak) ON 2 Evaporative (DTC P0442)

P0443 Evaporative emission system purge control valve circuit malfunction ON 2 CCM (DTC P0443)
P0446 Change over valve (COV) (EVAP system leak pump) stuck close ON 2 Evaporative (DTC P0446)
P0455 Evaporative emission system leak detected (gross leak) ON 2 Evaporative (DTC P0455)
P0456 Evaporative emission system leak detected (very small leak) ON 2 Evaporative (DTC P0456)
P0461 Fuel gauge sender unit circuit range/performance ON 2 CCM (See DTC P0461)

P0462 Fuel gauge sender unit circuit low input ON 2 CCM (See DTC P0462)
P0463 Fuel gauge sender unit circuit high input ON 2 CCM (See DTC P0463)
P0480 Fan relay No.1 control circuit malfunction OFF 2 Other (See DTC P0480)
P0481 Fan relay No.2 and No.3 control circuit malfunction OFF 2 Other (See DTC P0481)
P0482 Fan relay No.4 control circuit malfunction OFF 2 Other (See DTC P0482)

P0500 Vehicle speed sensor (VSS) circuit malfunction ON 2 CCM (See DTC P0500)
P0505 Idle control system malfunction OFF - - - (See DTC P0505)
P0506 Idle control system RPM lower than expected ON 2 CCM (See DTC P0506)
P0507 Idle control system RPM higher than expected ON 2 CCM (See DTC P0507)
P0550 PSP switch circuit malfunction ON 2 CCM (See DTC P0550)

P0564 Cruise control switch circuit malfunction OFF 1 Other (See DTC P0564)
P0571 Brake switch circuit malfunction OFF 1 Other (See DTC P0571)
P0601 Internal control module memory check sum error ON 1 CCM (See DTC P0601)
P0602 PCM programming error ON 1 CCM (See DTC P0602)
P0604 PCM RAM error ON 1 CCM (See DTC P0604)

P0606 ECM/PCM processor ON 1 CCM (See DTC P0606)
P0607 Control module performance ON 1 CCM (See DTC P0607)
P0610 Control module vehicle options error ON 1 CCM (See DTC P0610)
P0638 Throttle actuator control range/performance ON 1 CCM (See DTC P0638)

P0661 Variable intake-air system control solenoid valve circuit low input OFF 2 Other (DTC P0661)
P0662 Variable intake-air system control solenoid valve circuit high input OFF 2 Other (DTC P0662)
P0703 Brake switch No.1 circuit malfunction ON 2 CCM (See DTC P0703)
P0704 Clutch switch circuit malfunction ON 2 CCM (See DTC P0704)
P0850 Neutral switch circuit malfunction ON 2 CCM (See DTC P0850)

P1410 VAD control system circuit malfunction OFF 2 Other (See DTC P1410)
P1562 PCM +BB voltage low ON 1 CCM (See DTC P1562)
P2004 Variable tumble control system (VTCS) shutter valve stuck open ON 2 CCM (See DTC P2004)
P2006 Variable tumble control system (VTCS) shutter valve stuck closed ON 2 CCM (See DTC P2006)
P2009 Variable tumble control solenoid valve circuit low input ON 2 CCM (See DTC P2009)

P2010 Variable tumble control solenoid valve circuit high input ON 2 CCM (See DTC P2010)
P2088 CMP actuator circuit low ON 2 CCM (See DTC P2088)
P2089 CMP actuator circuit high ON 2 CCM (See DTC P2089)
P2100 Throttle actuator circuit open ON 1 CCM (See DTC P2100)
P2101 Throttle actuator circuit range/performance ON 1 CCM (See DTC P2101)

P2102 Throttle actuator circuit low input ON 1 CCM (See DTC P2102)
P2103 Throttle actuator control motor circuit high input ON 1 CCM (See DTC P2103)
P2107 Throttle actuator control module processor ON 1 CCM (See DTC P2107)
P2108 Throttle actuator control module performance ON 1 or 2 CCM (See DTC P2108)
P2119 Throttle actuator control throttle body range/performance ON 2 CCM (See DTC P2119)

P2122 Accelerator pedal position (APP) sensor No.1 circuit low input ON 1 CCM (See DTC P2122)
P2123 Accelerator pedal position (APP) sensor No.1 circuit high input ON 1 CCM (See DTC P2123)
P2127 Accelerator pedal position (APP) sensor No.2 circuit low input ON 1 CCM (See DTC P2127)
P2128 Accelerator pedal position (APP) sensor No.2 circuit high input ON 1 CCM (See DTC P2128)
P2135 Throttle position sensor No.1/No.2 voltage correlation ON 1 CCM (See DTC P2135)

P2138 Accelerator pedal position (APP) sensor No.1/No.2 voltage correlation ON 1 CCM (See DTC P2138)
P2228 BARO sensor circuit low input ON 1 CCM (See DTC P2228)
P2229 BARO sensor circuit high input ON 1 CCM (See DTC P2229)
P2401 Evaporative emission system leak detection pump control circuit low ON 2 Other (See DTC P2401)
P2402 Evaporative emission system leak detection pump control circuit high ON 2 Other (See DTC P2402)

P2404 Evaporative emission system leak detection pump sense circuit malfunction ON 2 Other (DTC P2404)
P2405 Evaporative emission system leak detection pump sense circuit low input ON 2 Other  (DTC P2405)
P2406 Evaporative emission system leak detection pump sense circuit high input ON 2 Other (DTC P2406)
P2407 Evaporative emission system leak detection pump sense circuit intermittent ON - Other (DTC P2407)
P2502 Generator terminal B circuit open OFF 1 Other (See DTC P2502)
P2503 Generator output voltage signal no electricity OFF 1 Other (See DTC P2503)

P2504 Battery overcharge OFF 1 Other (See DTC P2504)