LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 891 (Engine Control System (Diagnostic Codes & Symptom Tests)) >> DTC/Circuit Diagnosis >> DTC P0102, P0103: MAF Sensor >> On Board Diagnosis Logic >> Notes

On Board Diagnosis Logic: Notes

WARNING: This page is about a different car, the 2013 Nissan Armada. 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