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DTC P0102, P0103 MAF SENSOR EC-113 [YD (WITH EURO-OBD)] C D E F G H I J K L M A EC Diagnostic Procedure EBS013L9 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten engine ground screws. Refer to . OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. 2. CHECK MAFS POWER SUPPLY CIRCUIT 1. Disconnect mass air flow sensor harness connector. 2. Turn ignition switch ON. 3. Check voltage between mass air flow sensor terminal 5 and OK or NG OK >> GO TO 3. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 3. CHECK MAFS GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check harness continuity between mass air flow sensor terminal 4 and ECM terminal 73. 4. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 4. NG >> Repair open circuit or short to ground or short to power in harness or connectors. MBIB0915E MBIB0636E Voltage: Battery voltage MBIB0988E Continuity should exist. |