Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P0011: VTC System Malfunction
- Turn the ignition switch ON (II).
- Clear the DTC with the HDS.
- Start the engine.
- Watch the low oil pressure indicator with the engine running.
Is the low oil pressure Indicator on?
- YES - Check the oil pressure (see OIL PRESSURE TEST ), make any needed repairs, then go to step 15.
- NO - Go to step 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.
- Test-drive at a steady speed between 19-38 mph (30-60 km/h) for 10 minutes.
- 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.
- 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, system is OK at this time. Check for poor connections or loose terminals at the VTC oil control solenoid valve and the ECM/PCM. If the screen indicates NOT COMPLETED, go to step 5. and recheck.
- Turn the ignition switch OFF.
- Remove the auto-tensioner (see DRIVE BELT REPLACEMENT ).
- Remove the VTC strainer (A), and check it for clogging.
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.
- 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.
- Inspect the VTC actuator (see
VTC ACTUATOR INSPECTION
).
Is the VTC actuator OK?
- YES - Go to step 14.
- NO - Replace the VTC actuator (see VTC ACTUATOR, EXHAUST CAMSHAFT SPROCKET REMOVE ), then go to step 14.
- Turn the ignition switch ON (II).
- Reset the ECM/PCM with the HDS.
- Clear the CKP pattern with the HDS.
- Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).
- Do the CKP pattern learn procedure (see CKP PATTERN CLEAR/CKP PATTERN LEARN ).
- Do the VTC TEST in the INSPECTION MENU with the HDS.
- Check for Temporary DTCs or DTCs with the HDS.
Are any Temporary DTCs or DTCs indicated?
- YES - If DTC P0011 is indicated, check for poor connections or loose terminals at the VTC oil control solenoid valve and the ECM/PCM, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
- NO - Go to step 21.
- Monitor the OBD STATUS for DTC P0011 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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