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EC-178 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P0111 IAT SENSOR 5. Check 1st trip DTC. Is 1st trip DTC detected? YES >> Proceed to . NO >> INSPECTION END Component Function Check INFOID:0000000009719913 1. CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR 1. Turn ignition switch OFF. 2. Disconnect mass air flow sensor (bank 1) harness connector. 3. Check resistance between mass air flow sensor (bank 1) terminals as follows. Is the inspection result normal? YES >> GO TO 2. NO >> Proceed to . 2. CHECK INTERMITTENT INCIDENT Check intermittent incident. Refer to GI-44, "Intermittent Incident" . Is the inspection result normal? YES >> INSPECTION END NO >> Proceed to . Diagnosis Procedure INFOID:0000000009719914 1. CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR Check intake air temperature sensor. Refer to EC-178, "Component Inspection" . Is the inspection result normal? YES >> GO TO 2. NO >> Replace mass air flow sensor (with intake air temperature sensor) (bank 1). Refer to . 2. CHECK INTERMITTENT INCIDENT Check intermittent incident. Refer to GI-44, "Intermittent Incident" . >> INSPECTION END Component Inspection INFOID:0000000009719915 1. CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR 1. Turn ignition switch OFF. 2. Disconnect mass air flow sensor (bank 1) harness connector. 3. Check resistance between mass air flow sensor (bank 1) terminals as follows. Is the inspection result normal? YES >> INSPECTION END NO >> Replace mass air flow sensor (with intake air temperature sensor) (bank 1). Refer to . Terminals Condition Resistance (k Ω ) 1 and 2 Temperature [ ° C ( ° F)] 25 (77) 1.800 – 2.200 Terminals Condition Resistance (k Ω ) 1 and 2 Temperature [ ° C ( ° F)] 25 (77) 1.800 – 2.200 |