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Home >> Suzuki >> 2005 >> Verona EX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> Diagnostic Information and Procedures >> DTC P0444 EVAP Purge Control Valve Circuit Open >> DTC Troubleshooting
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DTC Troubleshooting

DIAGNOSIS PROCEDURE - DTC P0444 EVAP PURGE CONTROL VALVE CIRCUIT OPEN

Step Action Value(s) Yes No
1 Perform an On-Board Diagnostic (OBD) System Check.
Is the system check complete?		 - Go to Step 2. Go to "ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK ".
2
  1. Disconnect the evaporative emission (EVAP) canister purge valve connector.
  2. Connect a test light between the EVAP canister purge valve connector terminal 1 and battery positive.

Is the test light on?		 - Go to Step 3. Go to Step 5.
3
  1. Disconnect the ECM connector.
  2. Connect a test light between the ECM connector terminal 80 and ground.

Is the test light on?		 - Go to Step 4. Go to Step 6.
4
  1. Repair the line break in the wire between the EVAP canister purge valve connector 2 and the ECM connector terminal 80.
  2. Clear any Diagnostic Trouble Codes (DTCs) from the ECM.
  3. Perform the diagnostic system check.

Is the repair complete?		 - System OK -
5
  1. Repair the line break in the wire between the EVAP canister purge valve connector 1 and the main relay connector terminal 87.
  2. Clear any Diagnostic Trouble Codes (DTCs) from the ECM.
  3. Perform the diagnostic system check.

Is the repair complete?		 - System OK -
6
  1. Replace the ECM.
  2. Perform the diagnostic system check.

Is the repair complete?		 - Go to Step 7. -
7
  1. Using the scan tool, clear the Diagnostic Trouble Codes (DTCs).
  2. Start the engine and idle at normal operating temperature.
  3. Operate the vehicle within the Conditions for setting this DTC as specified in the supporting text.

Does the scan tool indicate that this diagnostic has run and passed?		 - Go to Step 8. Go to Step 2.
8 Check if any additional DTCs are set.
Are any DTCs displayed that have not been diagnosed?		 - Go to applicable DTC TABLE . System OK
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