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ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-95 DTC P0101 (Flash Code 92) Circuit Description The mass air flow (MAF) sensor is an air flow meter Condition for Running the DTC • DTCs P0045, P0102, P0103, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0122, AND following conditions are met longer than 10 • The battery voltage is between 10.0 to 16.0 volts. • The ignition switch is ON. • The intake air temperature is less than 110 °C (230 °F). • The engine coolant temperature is between 0 to 110 °C (32 to 230°F). • The engine speed is between 850 to 3700 RPM. • The EGR control is commanded OFF. • The intake throttle control is commanded OFF. • The commanded fuel injection quantity is OFF (accelerator pedal is not depressed). • The engine run time is longer than 5 seconds. Condition for Setting the DTC • The ECM detects that the MAF sensor signal voltage is not within a predetermined range of the Action Taken When the DTC Sets • The ECM illuminates the MIL when the diagnostic runs and fails. Refer to DTC Type Definitions for • The ECM limits fuel injection quantity. • The ECM inhibits pilot injection. • The ECM inhibits EGR control. • The ECM inhibits cruise control. Condition for Clearing the DTC • Refer to DTC Type Definitions for Condition for Clearing the MIL/ DTC - Type A. Diagnostic Aids • Any unmetered air that enters the engine downstream of the MAF sensor will cause this • High resistance in the MAF sensor circuit will set this DTC. • A short between the signal circuit of the MAF sensor and the signal circuit of the intake air Notice: • The MAF Sensor parameter on scan tool will only update with engine running or one time after the Schematic Reference: Engine Controls Schematics Connector End View Reference: Engine Controls Circuit/ System Testing DTC P0101 Step Action Value(s) Yes No 1 Did you perform the Diagnostic System Check - — Go to Step 2 Go to Diagnostic System Check - |