DTC P0101-00: MAF Sensor Circuit Range/Performance Problem: Notes

DTC P0101:00 PCM (SKYACTIV-G 2.5 - WITH CYLINDER DEACTIVATION) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0101:00	MAF Sensor Circuit Range/Performance Problem
DETECTION CONDITION	The difference between the intake air amount measured by the MAF sensor and the estimated intake air amount estimated by the MAP sensor is outside of the specified value. Diagnostic support note This is a continuous monitor (CCM). The check engine light illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM. (The check engine light may be illuminated depending on the malfunction conditions). PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle. FREEZE FRAME DATA/Snapshot data is available. DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Not applicable
POSSIBLE CAUSE	MAP sensor/IAT sensor No. 2 connector or terminals malfunction MAF sensor/IAT sensor No. 1 connector or terminals malfunction MAP sensor/IAT sensor No. 2 loose MAF sensor/IAT sensor No. 1 loose PCM connector or terminals malfunction MAP sensor malfunction MAF sensor malfunction Air leakage from intake-air system Purge solenoid valve malfunction PCV valve malfunction A non-genuine air cleaner or air cleaner cover installed PCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

RELATED PID

Item	Definition	Unit	Condition/Specification
ECT	Engine coolant temperature input from ECT sensor	°C, °F	Displays ECT
ECT	ECT sensor voltage	V	ECT is 20°C {68°F}: Approx. 3.10 V ECT is 40°C {104°F}: Approx. 2.16 V ECT is 60°C {140°F}: Approx. 1.40 V ECT is 80°C {176°F}: Approx. 0.87 V ECT is 100°C {212°F}: Approx. 0.54 V
MAF	Mass air flow input from MAF sensor	g/Sec	Displays MAF
MAF	MAF sensor voltage	V	Ignition switched ON (engine off) (MAF: 0.00 g/s {0 lb/min}): Approx. 1.69 V (ECT is 53°C {127°F}) Idle (after warm up) (MAF: 2.50 g/s {0.331 lb/min}): Approx. 1.89 V (ECT is 93°C {199°F}) Racing (engine speed is 2, 000 rpm) (MAF: 3.80 g/s {0.503 lb/min}): Approx. 2.02 V (ECT is 95°C {203°F})
MAP	Manifold absolute pressure input from MAP sensor	KPa {MPA}, mBar {BAR}, psi, in H20	Displays MAP
MAP_V	MAP sensor voltage	V	Ignition switched ON (engine off) (MAP:100 kPa {1.02 kgf/cm² , 14.5 psi}): Approx. 4.04 V Idle (after warm up) (MAP: 35 kPa {0.36 kgf/cm² , 5.1 psi}): Approx. 1.40 V Racing (engine speed is 2, 000 rpm) (MAP: 26 kPa {0.27 kgf/cm² , 3.8 psi}): Approx. 1.01 V
RPM	Engine speed	RPM	Displays engine speed
TP_REL	Throttle valve opening angle (relative value) with value at throttle valve fully close timing as the start point	%	Accelerator pedal released: Approx. 12% Accelerator pedal fully depressed: Approx. 82%