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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 187 (Engine Control System (2GR-FKS) - Diagnostic Codes (2 Of 7)) >> SFI System >> DTC P0100-64: Mass or Volume Air Flow Sensor "A" Signal Plausibility Failure [10/2017 - ] >> Description

DTC P0100-64: Mass or Volume Air Flow Sensor "A" Signal Plausibility Failure [10/2017 - ]: Description

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Refer to DTC P0100-12.

Refer to DESCRIPTION 

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*1 or 1.21*2 (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 -20%, or higher than 20%.
  • Mass air flow meter sub-assembly
  • Intake system
  • PCV hose connections
 Comes on DTC stored SAE Code: P0101
  1. *1: for IS350 models
  2. *2: for IS300 models
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