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Home >> Toyota >> 2019 >> RAV4 LE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 115 (Engine Control System (A25A-FXS) (W/ Canister Pump Module) - Diagnostic Codes (02 Of 13)) >> SFI SYSTEM (w/ Canister Pump Module) >> DTC P0100-64: Mass or Volume Air Flow Sensor "A" Signal Plausibility Failure [06/2020 - 08/2020] >> Description
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DTC P0100-64: Mass or Volume Air Flow Sensor "A" Signal Plausibility Failure [06/2020 - 08/2020]: Description

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

Refer to DTC P0100-12.

Refer to DTC P0100-12: Mass or Volume Air Flow Sensor "A" Circuit Short to Battery; DTC P0100-14: Mass or Volume Air Flow Sensor "A" Circuit Short to Ground or Open [06/2020 - 08/2020] 

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P0100-64 Mass or Volume Air Flow Sensor "A" Signal Plausibility Failure All of the following conditions are met (2 trip detection logic).
  1. The engine is running.
  2. The engine coolant temperature is 70°C (158°F) or higher.
  3. The throttle position sensor voltage is 0.2 V or higher, and less than 2 V.
  4. Average engine load value ratio is less than 0.85, or higher than 1.15 (varies with estimated engine load).

    Average engine load value ratio = Average engine load based on mass air flow meter sub-assembly output / Average engine load estimated from driving conditions

  5. Average air fuel ratio is less than -11%, or higher than 16%.
  • Mass air flow meter sub-assembly
  • Intake system
  • PCV hose connections
  • EGR valve assembly
Comes on DTC stored SAE Code: P0101