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Home >> Acura >> 2009 >> TSX Automatic >> Repair and Diagnosis >> Engine Performance >> System >> VTEC (4-CYL) >> DTC Troubleshooting >> DTC P0011: VTC System Malfunction

DTC P0011: VTC System Malfunction

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION )
  1. Turn the ignition switch to ON (II)
  2. Clear the DTC with the HDS
  3. Start the engine
  4. Watch the low oil pressure indicator

    Is the low oil pressure indicator on? 

    YES  -Check the engine oil level If the level is OK, check the engine oil pressure (see OIL PRESSURE TEST ), then go to step  15

    NO  -Go to step 5

  5. Do the VTC TEST in the INSPECTION MENU With the HDS

    Is the result OK? 

    YES  -Go to step 6

    NO  -Go to step  9

  6. Test-drive at a steady speed between 19-38 mph (30-60 km/h) for 10 minutes
  7. Check the VTC STATUS in the DATA LIST with the HDS

    Does it indicate ON? 

    YES  -Go to step 8

    NO  -Go to step  6 and recheck

  8. Monitor the OBD STATUS for DTC P0011 in the DTCs MENU with the HDS.

    Does the screen indicate FAILED? 

    YES  -Go to step 9

    NO  -If the screen indicates PASSED, intermittent failure, the system is OK at this time If the screen indicates NOT COMPLETED, go to step  5 and recheck

  9. Turn the ignition switch to LOCK (0)
  10. Remove the auto-tensioner (see AUTO-TENSIONER REMOVAL AND INSTALLATION )
  11. Remove the VTC strainer (A), and check it for clogging
    Fig 1: Identifying VTC Strainer
    G05992442Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is the strainer OK? 

    YES  -Go to step 12

    NO  -Clean the VTC strainer, replace the engine oil filter and the engine oil, then go to step  14.

  12. Test the VTC oil control solenoid valve (see VTC OIL CONTROL SOLENOID VALVE REMOVAL/TEST/INSTALLATION )

    Is the VTC oil control solenoid valve OK? 

    YES  -Go to step 13.

    NO  -Replace the VTC oil control solenoid valve (see VTC OIL CONTROL SOLENOID VALVE REMOVAL/TEST/INSTALLATION ), then go to step  14

  13. Inspect the VTC actuator (see VTC ACTUATOR INSPECTION )

    Is the VTC actuator OK? 

    YES  -Check the VTC system oil passages, then go to step 14

    NO  -Replace the VTC actuator (see VTC ACTUATOR, EXHAUST CAMSHAFT SPROCKET REPLACEMENT ), then go to step 14

  14. Turn the ignition switch to ON (II)
  15. Reset the ECM/PCM with the HDS
  16. Clear the CKP pattern with the HDS
  17. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE )
  18. Do the CKP pattern learn procedure (see CKP PATTERN CLEAR/CKP PATTERN LEARN )
  19. Do the VTC TEST in the INSPECTION MENU with the HDS
  20. Check for Temporary DTCs or DTCs with the HDS

    Is DTC P0011 indicated? 

    YES  -Check for poor connections or loose terminals at the VTC oil control solenoid valve and the ECM/PCM, then go to step  1

    NO  -Go to step 21

  21. Monitor the OBD STATUS for DTC P0011 in the DTCs MENU with the HDS

    Does the screen indicate PASSED? 

    YES  -Troubleshooting is complete If any other Temporary DTCs or DTCs were indicated in step 20, go to the indicated DTC's troubleshooting

    NO  -If the screen indicates FAILED, check for poor connections or loose terminals at the VTC oil control solenoid valve and the ECM/PCM, then go to step  1 If the screen indicates NOT COMPLETED, go to step  19

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