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Home >> Suzuki >> 2005 >> Aerio LX, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> DTC P2227, P2228, P2229: Barometric Pressure Circuit Range Performance/Low/High >> Diagnostic Trouble Codes Troubleshooting
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Diagnostic Trouble Codes Troubleshooting

DTC TROUBLESHOOTING

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 :".
2 Is DTC P2227 detected?  Go To Step 3. Substitute a known-good ECM and recheck.
3 MAP sensor check 
  1. Remove ECM from vehicle body referring to ENGINE CONTROL MODULE (ECM) REMOVAL AND INSTALLATION .
  2. Connect connectors to ECM.
  3. Check voltage between "C45-20" and "C46-16" under the following conditions. Voltage between "C45-20" and "C46-16" of ECM with ignition switch ON leaving engine OFF: 3.3 - 4.3 V at altitude 0 - 610 m, 0 - 2000 ft At idling: 0.7 - 1.6 V at altitude 0 - 610 m, 0 - 2000 ft 

Is check result as specified? 		 Substitute a known-good ECM and recheck. Go To Step 3 of "DTC P0108: Manifold Absolute Pressure Circuit High Input:".
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