LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1183 (Engine Control System - DTCS U0101 To P0183 (VQ40DE)) >> DTC P0102, P0103: MAF Sensor >> On Board Diagnosis Logic >> Notes

On Board Diagnosis Logic: Notes

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

These self-diagnoses have the one trip detection 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