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Home >> Suzuki >> 2011 >> Grand Vitara Premium, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis >> Diagnostic Information and Procedures >> DTC P0102: Mass or Volume Air Flow Circuit Low input; DTC P0103: Mass or Volume Air Flow Circuit High input >> DTC Troubleshooting
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DTC Troubleshooting

P0102, P0103 DIAGNOSIS PROCEDURE

Step Action YES NO
1  Was "Engine and Emission Control System Check" performed?  Go to Step 2. Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK:J24B .
2  MAF sensor circuit check 
  1. Check MAF sensor circuit referring to Step 4 through 6 of DTC P0101  .

Are they in good condition? 		 Go to Step 3. Repair or replace defective wire harness.
3  MAF sensor check 
  1. Check MAF sensor, MAF (MASS AIR FLOW) AND IAT (INTAKE AIR TEMPERATURE) SENSOR INSPECTION .

Is it in good condition? 		 Substitute a known-good ECM and recheck. Replace MAF and IAT sensor.
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