2005 Mazda MPV ESFACTORY OEM SERVICE PROCEDURE

With Rear HO2S Model

DTC (WITH REAR HO2S MODEL)

DTC No. Condition MIL DC Monitor item (3) Self-test type (4) Memory function
DTC P0031  HO2S heater (Front, RH) circuit low ON 2 HO2S heater C, O, R (1)
DTC P0032  HO2S heater (Front, RH) circuit high ON 2 HO2S heater C, O, R (1)
DTC P0037  HO2S heater (Rear, RH) circuit low ON 2 HO2S heater C, O, R (1)
DTC P0038  HO2S heater (Rear, RH) circuit high ON 2 HO2S heater C, O, R (1)
DTC P0051  HO2S heater (Front, LH) circuit low ON 2 HO2S heater C, O, R (1)
DTC P0052  HO2S heater (Front, LH) circuit high ON 2 HO2S heater C, O, R (1)
DTC P0057  HO2S heater (Rear, LH) circuit low ON 2 HO2S heater C, O, R (1)
DTC P0058  HO2S heater (Rear, LH) circuit high ON 2 HO2S heater C, O, R (1)
DTC P0101  MAF sensor inconsistent with TP sensor ON 2 CCM C (1)
DTC P0102  MAF circuit low input ON 1 CCM C, O, R (1)
DTC P0103  MAF circuit high input ON 1 CCM C, O, R (1)
DTC P0111  IAT circuit performance problem ON 2 CCM C (1)
DTC P0112  IAT circuit low input ON 1 CCM C, O, R (1)
DTC P0113  IAT circuit high input ON 1 CCM C, O, R (1)
DTC P0117  ECT circuit low input ON 1 Engine cooling system C, O, R (1)
DTC P0118  ECT circuit high input ON 1 Engine cooling system C, O, R (1)
DTC P0121  Throttle position stuck close ON 2 CCM C (1)
DTC P0122  TP circuit low input ON 1 CCM C, O, R (1)
DTC P0123  TP circuit high input ON 1 CCM C, O, R (1)
DTC P0125  Excessive time to enter closed loop fuel control ON 2 Engine cooling system C (1)
DTC P0126, P0128  Coolant thermostat stuck open ON 2 Thermostat C (1)
DTC P0126, P0128  Coolant thermostat stuck open ON 2 Thermostat C (1)
DTC P0132, P0152  HO2S (Front, RH) no inversion (high stuck) ON 2 HO2S C, O, R (1)
DTC P0133, P0153  HO2S (Front, RH) circuit malfunction ON 2 HO2S C (1)
DTC P0134, P0154  HO2S (Front, RH) circuit no activity detected ON 2 HO2S C, R (1)
DTC P0138, P0158  HO2S (Rear, RH) circuit high input ON 2 HO2S C, O, R (1)
DTC P0139, P0159  HO2S (Rear, RH) circuit malfunction ON 2 HO2S C (1)
DTC P0140, P0160  HO2S (Rear, RH) circuit no activity detected ON 2 HO2S C, R (1)
DTC P0132, P0152  HO2S (Front, LH) no inversion (high stuck) ON 2 HO2S C, O, R (1)
DTC P0133, P0153  HO2S (Front, LH) circuit malfunction ON 2 HO2S C (1)
DTC P0134, P0154  HO2S (Front, LH) circuit no activity detected ON 2 HO2S C, R (1)
DTC P0138, P0158  HO2S (Rear, LH) circuit high input ON 2 HO2S C, O, R (1)
DTC P0139, P0159  HO2S (Rear, LH) circuit malfunction ON 2 HO2S C (1)
DTC P0140, P0160  HO2S (Rear, LH) circuit no activity detected ON 2 HO2S C, R (1)
DTC P0300  Random misfire detected Flash/ON 1 or 2 Misfire C, R (1)
DTC P0301, P0302, P0303, P0304, P0305, P0306  Cylinder No.1 misfire detected Flash/ON 1 or 2 Misfire C, R (1)
DTC P0301, P0302, P0303, P0304, P0305, P0306  Cylinder No.2 misfire detected Flash/ON 1 or 2 Misfire C, R (1)
DTC P0301, P0302, P0303, P0304, P0305, P0306  Cylinder No.3 misfire detected Flash/ON 1 or 2 Misfire C, R (1)
DTC P0301, P0302, P0303, P0304, P0305, P0306  Cylinder No.4 misfire detected Flash/ON 1 or 2 Misfire C, R (1)
DTC P0301, P0302, P0303, P0304, P0305, P0306  Cylinder No.5 misfire detected Flash/ON 1 or 2 Misfire C, R (1)
DTC P0301, P0302, P0303, P0304, P0305, P0306  Cylinder No.6 misfire detected Flash/ON 1 or 2 Misfire C, R (1)
DTC P0327  Knock sensor circuit low input ON 1 CCM C, O, R (1)
DTC P0328  Knock sensor circuit high input ON 1 CCM C, O, R (1)
DTC P0335  CKP sensor circuit malfunction ON 1 CCM C (1)
DTC P0340  CMP sensor circuit malfunction ON 1 CCM C (1)
DTC P0401  EGR flow insufficient detected ON 2 EGR C, R (1)
DTC P0403  EGR valve motor coils open or short ON 2 CCM C, O, R (1)
DTC P0421, P0431  Warm-up catalyst system (RH) efficiency below threshold ON 2 Catalyst C (1)
DTC P0421, P0431  Warm-up catalyst system (LH) efficiency below threshold ON 2 Catalyst C (1)
DTC P0441  Evaporative emission control system incorrect purge flow ON 2 Evaporative C, R (1)
DTC P0442  Evaporative emission control system leak detected (small leak) ON 2 Evaporative C, R (1)
DTC P0443  Evaporative emission control system purge control valve circuit malfunction ON 2 CCM C, O, R (1)
DTC P0446  Change over valve (COV) (EVAP system leak detection pump) stuck close ON 2 CCM C, R (1)
DTC P0455  Evaporative emission control system leak detected (large leak) ON 2 Evaporative C, R (1)
DTC P0456 (5) Evaporative emission control system leak detected (very small leak) ON 2 Evaporative C, R (1)
DTC P0461  Fuel gauge sender unit circuit range/performance ON 2 CCM C (1)
DTC P0462  Fuel gauge sender unit circuit low input ON 2 CCM C, O, R (1)
DTC P0463  Fuel gauge sender unit circuit high input ON 2 CCM C, O, R (1)
DTC P0480  Fan control module circuit malfunction OFF 1 Other C, O, R (1)
DTC P0500  Vehicle speed sensor (VSS) circuit malfunction ON 2 CCM C (1)
DTC P0505  IAC valve circuit malfunction OFF (2) Other R (1)
DTC P0506  Idle control system RPM lower than expected ON 2 CCM C (1)
DTC P0507  Idle control system RPM higher than expected ON 2 CCM C (1)
DTC P0511  IAC system malfunction ON 1 CCM C, O, R (1)
DTC P0550  PSP switch circuit malfunction ON 2 CCM C (1)
DTC P0602  PCM programming error ON 1 CCM C, O, R (1)
DTC P0610  Control module vehicle options error ON 1 CCM C, O, R (1)
DTC P0661  Intake manifold communication control (IMCC) actuator circuit low input OFF 1 Other C, O, R (1)
DTC P0662  Intake manifold communication control (IMCC) actuator circuit high input OFF 1 Other C, O, R (1)
DTC P0703  Brake switch input malfunction ON 2 CCM C (1)
DTC P1602  Immobilizer unit-PCM communication error OFF (2) (2) C, O (1)
DTC P1603  Key ID numbers are not registered in PCM OFF (2) (2) C, O (1)
DTC P1604  Code word is not registered in PCM OFF (2) (2) C, O (1)
DTC P1621  Code word does not match after engine cranking OFF (2) (2) C, O (1)
DTC P1622  Key ID number does not match OFF (2) (2) C, O (1)
DTC P1623  Code word or key ID number read/write error in PCM OFF (2)   C, O (1)
DTC P1624  Immobilizer system communication counter=0 OFF (2)   C, O (1)
DTC P2096, P2098  Target A/F feedback system too lean (Right bank) ON 2 Fuel C (1)
DTC P2097, P2099  Target A/F feedback system too rich (Right bank) ON 2 Fuel C (1)
DTC P2096, P2098  Target A/F feedback system too lean (Left bank) ON 2 Fuel C (1)
DTC P2097, P2099  Target A/F feedback system too rich (Left bank) ON 2 Fuel C (1)
DTC P2144  EGR boost sensor solenoid valve circuit low input ON 2 Other C, O, R (1)
DTC P2145  EGR boost sensor solenoid valve circuit high input ON 2 Other C, O, R (1)
DTC P2177, P2179  Fuel system too lean at off idle (Right bank) ON 2 Fuel C, R (1)
DTC P2178, P2180  Fuel system too rich at off idle (Right bank) ON 2 Fuel C, R (1)
DTC P2177, P2179  Fuel system too lean at off idle (Left bank) ON 2 Fuel C, R (1)
DTC P2178, P2180  Fuel system too lean at off idle (Left bank) ON 2 Fuel C, R (1)
DTC P2187, P2189  Fuel system too lean at idle (Right bank) ON 2 Fuel C, R (1)
DTC P2188, P2190  Fuel system too rich at idle (Right bank) ON 2 Fuel C, R (1)
DTC P2187, P2189  Fuel system too lean at idle (Left bank) ON 2 Fuel C, R (1)
DTC P2188, P2190  Fuel system too rich at idle (Left bank) ON 2 Fuel C, R (1)
DTC P2195, P2197  HO2S (RF) signal stuck lean ON 2 HO2S C (1)
DTC P2196, P2198  HO2S (RF) signal stuck rich ON 2 HO2S C (1)
DTC P2195, P2197  HO2S (LF) signal stuck lean ON 2 HO2S C (1)
DTC P2196, P2198  HO2S (LF) signal stuck rich ON 2 HO2S C (1)
DTC P2227  EGR boost sensor circuit performance problem ON 2 CCM C (1)
DTC P2228  EGR boost sensor circuit low input ON 1 CCM C, O, R (1)
DTC P2229  EGR boost sensor circuit high input ON 1 CCM C, O, R (1)
DTC P2401  Evaporative Emission System Leak Detection Pump motor circuit low input ON 2 Evaporative C, R (1)
DTC P2402  Evaporative Emission System Leak Detection Pump motor circuit high input ON 2 Evaporative C, R (1)
DTC P2404  Evaporative Emission System Leak Detection Pump air filter clogging ON 2 Evaporative C, R (1)
DTC P2405  Evaporative Emission System Leak Detection Pump orifice fallen off ON 2 Evaporative C, R (1)
DTC P2407  Evaporative Emission System Leak Detection Pump heater malfunction ON 2 Evaporative C, R (1)
DTC P2502  Generator terminal B circuit open OFF 1 Other C, R (1)
DTC P2503  Generator output voltage signal no electricity OFF 1 Other C, R (1)
DTC P2504  Battery overcharge OFF 1 Other C, R (1)
DTC P2507  PCM +BB (back-up battery) voltage low ON 1 CCM C, O, R (1)
DTC U0073  CAN BUS OFF OFF 1 Other C, O, R (1)
DTC U0101  PCM cannot receive any signals from TCM ON 1 CCM C, O, R (1)
(1) Applicable
(2) Not applicable
(3) Indicates the applicable item in the On-Board System Readiness Test as defined by CARB.
(4) C: CMDTC self-test, O: KOEO self-test, R: KOER self-test
(5) California emission regulation applicable model
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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