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EC-152 < COMPONENT DIAGNOSIS > [QR25DE] P0101 MAF SENSOR 9. Check the voltage between ECM harness connector and ground. 10. Shift the selector lever to P position. 11. Fully depress the accelerator pedal and keep it. 12. Check the voltage between ECM harness connector and ground. 13. Fully release accelerator pedal then fully depress it. 14. Check for linear voltage rise in response to engine being increased to about 2,500 rpm. Is the inspection result normal? YES >> INSPECTION END NO >> Clean or replace mass air flow sensor. ECM Ground Condition Voltage Connector Terminal F13 58 (MAF sensor signal) Ground Idle (Engine is warmed- 0.9 - 1.2 V JMBIA1632ZZ ECM Ground Condition Voltage Connector Terminal F13 58 (MAF sensor signal) Ground 2,500 rpm (Engine is 1.5 - 1.8 V JMBIA1633ZZ |