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Home >> Scion >> 2005 >> xA Automatic >> Repair and Diagnosis >> Engine Performance >> SFI System >> DTC P0101: Mass Or Volume Air Flow Circuit Range/Performance Problem >> Circuit Description

Circuit Description

Refer to DTC P0100  .

DTC DETECTION CONDITIONS

DTC No. DTC Detection Conditions Trouble Areas
P0101
  • High voltage:

    Conditions (a), (b) and (c) continue for more than 10 seconds (2 trip detection logic):

    1. Engine speed less than 900 rpm
    2. Engine coolant temperature 70°C (158°F) or higher
    3. Voltage output of Mass Air Flow (MAF) meter more than 2.2 V (varies with Throttle Position (TP) sensor voltage)
  • Low voltage:

    Conditions (a) and (b) continue for more than 6 seconds (2 trip detection logic):

    1. Engine speed more than 0 rpm
    2. VTA is more than 0.1 V
    3. Voltage output of MAF meter less than 0.4 V (varies with TP sensor voltage)
  • MAF meter