DTC P0102 Mass air flow (MAF) sensor circuit low input DETECTION CONDITION • The PCM monitors the MAF sensor signal. If the voltage at PCM terminal 124 remains low, the PCM determines that there is a MAF sensor circuit problem. POSSIBLE CAUSE • MAF sensor malfunction • Connector or terminal malfunction • Open circuit in the wiring harness between…
Mazda Factory OBD-II DTC P0101 Code
DTC P0101 Mass air flow (MAF) sensor range/performance problem DETECTION CONDITION • The PCM monitors the input voltage from the MAF sensor. If the voltages at PCM terminal 124 deviates from the threshold, the PCM determines that the there is a MAF sensor problem. POSSIBLE CAUSE • MAF sensor malfunction • Air restriction or leakage at intake-air system…
Mazda Factory OBD-II DTC P0100 Code
DTC P0100 Mass air flow (MAF) sensor circuit malfunction DETECTION CONDITION • The PCM monitors the input voltage from the MAF sensor. If the voltages at PCM terminal 124 remain low or high, the PCM determines that the there is a MAF sensor circuit problem. POSSIBLE CAUSE • MAF sensor malfunction • Connector or terminal malfunction • Open circuit…
Mazda Factory OBD-II DTC P0098 Code
DTC P0098 Intake air temperature (IAT) sensor No.2 circuit high input DETECTION CONDITION • The PCM monitors the IAT sensor No.2 signal. If the voltage at PCM terminal 242 remains high, the PCM determines that there is an IAT sensor No.2 circuit problem. POSSIBLE CAUSE • IAT sensor No.2 malfunction • Connector or terminal malfunction • Open circuit in…
Mazda Factory OBD-II DTC P0097 Code
DTC P0097 Intake air temperature (IAT) sensor No.2 circuit low input DETECTION CONDITION • The PCM monitors the IAT sensor No.2 signal. If the voltage at PCM terminal 242 remains low, the PCM determines that there is an IAT sensor No.2 circuit problem. POSSIBLE CAUSE • IAT sensor NO.2 malfunction • Connector or terminal malfunction • Short to ground…
Mazda Factory OBD-II DTC P0089 Code
DTC P0089 Fuel Pressure Regulator Performance DETECTION CONDITION • PCM detects the fuel pressure at the common rail for the following while the engine is running, the PCM determines that the fuel system pressure is not controlled properly. ― Fuel pressure is excessively high. ― Fuel pressure is higher than the threshold compared to the target fuel pressure….
Mazda Factory OBD-II DTC P0088 Code
DTC P0088 Fuel rail pressure – too high DETECTION CONDITION • The PCM monitors the fuel pressure in the common rail from the fuel pressure sensor while the engine is running. If the fuel pressure is more than threshold, the PCM determines that the fuel pressure is too high. POSSIBLE CAUSE • Fuel metering valve malfunction (built-in…
Mazda Factory OBD-II DTC P0087 Code
DTC P0087 Fuel rail pressure – too low DETECTION CONDITION • The PCM monitors the fuel pressure in the common rail from the fuel pressure sensor while the engine is running. If the fuel pressure is less than the threshold, the PCM determines that the fuel pressure is too low. POSSIBLE CAUSE • Fuel metering valve malfunction…
Mazda Factory OBD-II DTC P0069 Code
DTC P0069 MAP sensor and BARO sensor signal correlation error DETECTION CONDITION • The PCM monitors MAP sensor signal voltage at PCM terminal 234 and barometric pressure at PCM internal BARO sensor. If these signals are not plausible, the PCM determines the MAP sensor and BARO sensor correlation error. POSSIBLE CAUSE • MAP sensor malfunction • BARO…
Mazda Factory OBD-II DTC P0048 Code
DTC P0048 Variable boost control (VBC) solenoid valve control circuit high input DETECTION CONDITION • The PCM monitors the VBC solenoid valve control signal. If the voltage at PCM terminal 104 remains high, the PCM determines that there is a VBC solenoid valve circuit problem. POSSIBLE CAUSE • VBC solenoid valve malfunction • Connector or terminal malfunction • Short…
Mazda Factory OBD-II DTC P0047 Code
DTC P0047 Variable boost control (VBC) solenoid valve control circuit low input DETECTION CONDITION • The PCM monitors the VBC solenoid valve control signal. If the voltage at PCM terminal 104 remains low, the PCM determines that there is a VBC solenoid valve circuit problem. POSSIBLE CAUSE • VBC solenoid valve malfunction • Connector or terminal malfunction • Short…
Mazda Factory OBD-II DTC P0046 Code
DTC P0046 Variable boost control (VBC) solenoid valve range/performance problem DETECTION CONDITION • The VBC solenoid valve driver temperature is too high. • The VBC solenoid valve is stuck. POSSIBLE CAUSE • VBC solenoid valve malfunction • PCM malfunction Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA been recorded?…
Mazda Factory OBD-II DTC P0045 Code
DTC P0045 Variable boost control (VBC) solenoid valve control circuit open DETECTION CONDITION • The PCM monitors the input voltage from the VBC solenoid valve. If the voltages at PCM terminal 104 remain low or high, the PCM determines that the there is a VBC solenoid valve circuit problem. POSSIBLE CAUSE • VBC solenoid valve malfunction • Connector…
Mazda Factory OBD-II DTC P0033 Code
DTC P0033 Air bypass valve position sensor open circuit DETECTION CONDITION • The PCM monitors the input voltage from the air bypass valve position sensor. If the voltages at PCM terminal 233 deviates from the threshold, the PCM determines that the there is an air bypass valve position sensor circuit problem. POSSIBLE CAUSE • Air bypass valve…
Mazda Factory OBD-II DTC C1194 Code
DTC C1194 DSC continuous operation fault DETECTION CONDITION • The PCM receives DSC operation signals from DSC CM while the engine switch is turned to the ON position. If the PCM receives DSC operation signals for longer than the specified time, the PCM determines that the DSC is operating continuously. Note • The DSC CM stops operating…
Mazda Factory DTC P2458
DTC P2458 Diesel particulate filter regeneration duration DETECTION CONDITION • The PCM monitors the diesel particulate filter regeneration duration using the exhaust differential pressure sensor. If the exhaust differential pressure sensor signal high condition is longer than specified period. The PCM determines that the diesel particulate filter regeneration duration is too long. POSSIBLE CAUSE • EGR valve…
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ОБД-ИИ ШИФРЕ
Обычно считыватели кодов неисправностей представляют собой ручного типа электронный прибор, который способен прочесть записанные в памяти блока самодиагностики данные и представить их в виде трёх значных числовых кодов. Фирма Форд рекомендует использование прибора их производства – STAR1. Но так как приобретение этого прибора ввиду высокой стоимости не реально, рекомендуются следующие варианты: (а) Приобретение одного из…
How to Reset Check Engine Light?
How to Reset Check Engine Light? Check engine lights go on when there is a problem in the engine or the emissions control system. You should always have the codes generated by your car’s computer scanned and read so you can determine the cause. You can reset the light once you have fixed the problem….
What is OBD2 Codes Explained?
OBD-II Codes The OBD II system monitors different areas of the vehicle. If a problem or conflict is detected, the system will illuminate the MIL and set a code in the PCM’s memory. An OBD II code is an alphanumeric code containing a letter as it’s first digit followed by a series of numbers. Let’s…