DTC P0102: Mass or Volume Air Flow A Circuit Low Input

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P0102 - MASS OR VOLUME AIR FLOW A CIRCUIT LOW INPUT

Description:	The mass air flow (MAF) sensor circuit is monitored by the powertrain control module (PCM) for low air flow (or voltage) input through the comprehensive component monitor (CCM). If during key on, engine running (KOER) the air flow (or voltage) changes below a minimum calibrated limit, the test fails.
Possible Causes:	MAF sensor disconnected MAF circuit open to PCM VPWR open to MAF sensor PWR GND open to the MAF sensor MAF RTN circuit open to PCM MAF circuit shorted to GND Intake air leak (near the MAF sensor) A closed throttle indication (throttle position [TP] sensor system) Damaged MAF sensor
Diagnostic Aids:	A MAF V PID reading less than 0.23 volt in continuous memory or KOER indicates a hard fault.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	-	GO to DC: Mass Air Flow (MAF) Sensor STEP DC4.	GO to DC: Mass Air Flow (MAF) Sensor STEP DC4.