On Board Diagnosis Logic: Notes
WARNING: This page is about a different car, the 2005 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
These self-diagnoses have the one trip detection logic.
ON BOARD DIAGNOSIS LOGIC
| DTC No. | Trouble diagnosis name | DTC detecting condition | Possible cause |
|---|---|---|---|
| P0102 0102 | Mass air flow sensor circuit low input | An excessively low voltage from the sensor is sent to ECM. | Harness or connectors (The sensor circuit is open or shorted.) Intake air leaks Mass air flow sensor |
| P0103 0103 | Mass air flow sensor circuit high input | An excessively high voltage from the sensor is sent to ECM. | Harness or connectors (The sensor circuit is open or shorted.) Mass air flow sensor |