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Home >> Suzuki >> 2006 >> XL-7 Base, RWD, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> Diagnostic Information and Procedures >> DTC P0443: Evaporative Emission System Purge Control Valve Circuit >> DTC Troubleshooting
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DTC Troubleshooting

DTC DIAGNOSTIC TROUBLESHOOTING CHART

Step Action YES NO
Was "Engine and Emission Control System Check" performed?  Go to Step 2. Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
  1. Check EVAP canister purge system for operation referring to EVAP CANISTER PURGE SYSTEM INSPECTION .

Is check result satisfactory? 
Intermittent trouble or faulty ECM.
Check for intermittent referring to INTERMITTENT AND POOR CONNECTION INSPECTION .
Go to Step 3.
  1. Check EVAP canister purge valve for resistance referring to EVAP CANISTER PURGE VALVE INSPECTION .

Is resistance as specified? 
"GRN/BLK" or "BLU/BLK" circuit wire is open or short.
If wire and connections are OK, substitute a known-good ECM and recheck.
Replace EVAP canister purge valve.