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1A-77 Engine General Information and Diagnosis: DTC P0102 / P0103: Mass Air Flow Circuit Low / High Input S6JB0B1104019 Wiring Diagram DTC Detecting Condition and Trouble Area DTC Confirmation Procedure 1) With ignition switch OFF, connect scan tool. DTC Troubleshooting DTC detecting condition Trouble area DTC P0102: Mass Air Flow Circuit Low Input • MAF sensor and its circuit DTC P0103: Mass Air Flow Circuit High Input Step Action Yes No 1 Was “Engine and Emission Control System Check” Go to Step 2. Go to “Engine and 2 MAF sensor and its circuit check OFF. 2) Start engine and check MAF value displayed on scan tool. (Refer to “Scan Tool Data” for normal value.) Is normal value indicated? Intermittent trouble. Go to Step 3. 3 MAF sensor power supply voltage check switch turned OFF. 2) Check for proper terminal connection to MAF sensor and ECM connectors 3) If connections are OK, turn ignition switch to ON position. 4) Check that MAF sensor power supply voltage is battery voltage. Is it in good condition? Go to Step 4. Repair or replace MAF I6JB01110028-01 |