Details On DTCs
DTC P0100:00 DETECTION CONDITION AND POSSIBLE CAUSE
| DESCRIPTION |
Mass air flow sensor circuit performance problem |
| DETECTION CONDITION |
Determination conditions |
- The following conditions are 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 |
- The following DTCs are not detected:
- MAF sensor/IAT sensor No. 1: U060F:00
|
| 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 |
- Illuminates check engine light.
- Rough idling, poor acceleration, stalling
|
| POSSIBLE CAUSE |
- MAF sensor/IAT sensor No. 1 loose
- MAF sensor/IAT sensor No. 1 connector or terminals malfunction
- PCM connector or terminals malfunction
- Short to ground in wiring harness between the following terminals:
- MAF sensor/IAT sensor No. 1 terminal B-PCM terminal 2BE
- MAF sensor/IAT sensor No. 1 terminal C-PCM terminal 2AT
- Open circuit in wiring harness between the following terminals:
- MAF sensor/IAT sensor No. 1 terminal A-PCM terminal 2AI
- MAF sensor/IAT sensor No. 1 terminal B-PCM terminal 2BE
- MAF sensor/IAT sensor No. 1 terminal C-PCM terminal 2AT
- Short to power supply in wiring harness between MAF sensor/IAT sensor No. 1 terminal B and PCM terminal 2BE
- MAF sensor/IAT sensor No. 1 circuits are shorted to each other
- MAF sensor/IAT sensor No. 1 malfunction
- PCM malfunction
|