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EC-134 < COMPONENT DIAGNOSIS > [HR16DE (WITH EURO-OBD)] P0102, P0103 MAF SENSOR P0102, P0103 MAF SENSOR Description INFOID:0000000001670899 The mass air flow sensor (1) is placed in the stream of intake air. It DTC Logic INFOID:0000000001670900 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at Which DTC is detected? P0102 >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0102 1. Start engine and wait at least 5 seconds. 2. Check DTC. Is DTC detected? YES >> Go to NO >> INSPECTION END 3. PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0103-I 1. Turn ignition switch ON and wait at least 5 seconds. 2. Check DTC. Is DTC detected? YES >> Go to NO >> GO TO 4. 4. PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0103-II 1. Start engine and wait at least 5 seconds. 2. Check DTC. Is DTC detected? YES >> Go to PBIA9559J DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0102 Mass air flow sensor An excessively low voltage from the sensor is sent • Harness or connectors (The sensor circuit is open or shorted.) • Intake air leaks P0103 Mass air flow sensor An excessively high voltage from the sensor is • Harness or connectors (The sensor circuit is open or shorted.) • Mass air flow sensor |