Details On DTCs
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0100:00 (PCM, SKYACTIV-G) DETECTION CONDITION AND POSSIBLE CAUSE
| Description |
Mass air flow sensor circuit performance problem |
| Detection condition |
Determination conditions |
- Any one of the following conditions is met:
- The MAF sensor/IAT sensor No. 1 determines an internal malfunction itself and the PCM receives error signals from the MAF sensor/IAT sensor No. 1 for 5 s.
- The PCM receives a value other than the preset standard for the output value from the MAF sensor for 5 s.
|
| Preconditions |
- Engine speed: 500 rpm or more*1
- The following DTC is not detected:
- MAF sensor/IAT sensor No. 1: U060F:00
*1
: Standard can be verified by displaying PIDs using M-MDS |
| Drive cycle |
|
| Self test type |
- CMDTC self test, KOEO self test, KOER self test
|
| Sensor used |
- MAF sensor/IAT sensor No. 1
|
| Fail-safe function |
- Restricts the upper limit of the engine speed.
- Inhibits the evaporative purge control.
|
| Vehicle status when DTCs are output |
- Rough idling, poor acceleration, stalling
|
| Possible cause |
- MAF sensor/IAT sensor No. 1 incorrect installation
- MAF sensor/IAT sensor No. 1 connector or terminals malfunction
- PCM connector or terminals malfunction
- Short to ground in any of the following MAF sensor/IAT sensor No. 1 circuits.
- Open circuit in any of the following MAF sensor/IAT sensor No. 1 circuits.
- Power supply circuit
- Signal circuit
- Short to power supply in MAF sensor/IAT sensor No. 1 signal circuit
- Short circuit between any of the following MAF sensor/IAT sensor No. 1 circuits.
- Power supply circuit
- Signal circuit
- MAF sensor/IAT sensor No. 1 malfunction
- PCM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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