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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 P0447 EVAP Vent Control Circuit Open >> DTC Troubleshooting
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DTC Troubleshooting

DIAGNOSIS PROCEDURE - DTC P0447 EVAP VENT CONTROL 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. Turn ON the ignition, with the engine OFF.
  2. Command the EVAP vent solenoid ON and OFF with a scan tool.

Do you hear or feel a click from the EVAP vent solenoid when the solenoid is commanded ON and OFF?		 - Go to Step 3. Go to Step 4.
3
  1. Observe the Freeze Frame/Failure Records for this DTC.
  2. Turn OFF the ignition for 90 seconds.
  3. Start the engine.
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records.

Did the DTC fail this ignition?		 - Go to Step 4. Go to "DIAGNOSTIC AIDS ".
4
  1. Turn OFF the ignition.
  2. Disconnect the EVAP vent solenoid.
  3. Turn ON the ignition, with the engine OFF.
  4. Probe the ignition 1 voltage circuit of the EVAP vent solenoid with a test lamp connected to a good ground.

Does the test lamp illuminate?		 - Go to Step 5. Go to Step 7.
5 Test the control circuit of the EVAP vent solenoid for a short to ground.
Did you find and correct the condition?		 - Go to Step 9. Go to Step 6.
6 Test for an intermittent and for a poor connection at the control module.
Did you find and correct the condition?		 - Go to Step 9. Go to Step 8.
7 Repair the ignition 1 voltage circuit of the EVAP vent solenoid for a short to ground.
Replace the fuse as necessary.
Did you complete the repair?		 - Go to Step 9. -
8 Replace the control module.
Did you complete the replacement?		 - Go to Step 9. -
9
  1. Clear the DTCs with a scan tool.
  2. Turn OFF the ignition for 90 seconds.
  3. Start the engine.
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records.

Did the DTC fail this ignition?		 - Go to Step 2. Go to Step 10.
10 Observe the Capture Info with a scan tool.
Are there any DTCs that have not been diagnosed?		 - Go to applicable DTC TABLE . System OK
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