LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2012 >> Matrix Base, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Control System (2AZ-FE) (Diagnostic Codes (P0010 - P0456)) >> SFI System >> DTC P0101: Mass Air Flow Circuit Range / Performance Problem >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.
NOTE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT: 

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.