LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2008 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS U1000 Through P0153 >> DTC P0102, P0103 MAF Sensor >> On Board Diagnosis Logic >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

On Board Diagnosis Logic: Notes

These self-diagnoses have the one trip detection logic. 

DTC DETECTING CONDITION AND POSSIBLE CAUSE

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