LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Scion >> 2010 >> tC Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010-P043E) >> SFI System >> DTC P0101: Mass or Volume Air Flow Circuit Range / Performance Problem >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P0101: Mass or Volume Air Flow Circuit Range / Performance Problem: Description

Refer to DTC P0100. Refer to DESCRIPTION .

DTC No. DTC Detection Condition Trouble Area
P0101 Conditions (a), (b), (c) and (d) are met
(2 trip detection logic):
(a) Engine running
(b) Engine coolant temperature 70°C (158°F) or higher
(c) Throttle Position (TP) sensor voltage 0.24 V or more
(d) Average engine load value ratio less than 0.85% or more than 1.23% (varies with estimated engine load)
Average engine load value ratio = Average engine load based on MAF meter output / Average engine load estimated from driving conditions
  • MAF meter
  • Air induction system
  • PCV hose connections