DTC P0011 (2020 2021)
DTC P0011: Variable Valve Timing Control (VTC) System Malfunction
General Description
The variable valve timing control (VTC) system controls the timing of the intake camshaft. It uses a motor to operate the VTC actuator so the valve timing is optimized depending on driving conditions. The powertrain control module (PCM) monitors the phase control command and the actual timing of the camshaft by using the camshaft position (CMP) sensor A. If the phase difference between them is excessive for a certain time period, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 15.0 seconds or more |
| DTC Type | Two drive cycles, MIL on |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| VTC operating voltage | 6 V | - |
| Engine coolant temperature [ECT Sensor 1] | - | 244 deg.F (118 deg.C) |
| Engine speed [Engine Speed] | 500 RPM | - |
| Battery voltage | 10.5 V | - |
[ ]: HDS Parameter
Malfunction Threshold
The phase difference between the phase control command and the actual phase of the intake camshaft is 20.0 deg. or more for at least 15 seconds.
Possible Cause
- VTC actuator stuck
- VTC actuator response delay
- Electric VTC motor lock
- Electric VTC motor failure
- Electric VTC failure
Confirmation Procedure
Operating Condition
- Enter the maintenance mode, than start the engine. Hold the engine speed [Engine Speed] at 3, 000 RPM without load (in P or N) until the radiator fan comes on.
- Drive the vehicle at a steady speed between 25 - 75 mph (40 - 120 km/h) for at least 15 seconds.
- Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.
With the HDS
Select the VTC TEST in the INSPECTION MENU with the HDS, then select the IN-VTC.
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC and the freeze data are stored.
Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the 12 volt battery.
DTC P0011: Variable Valve Timing Control (VTC) System Malfunction
General Description
The variable valve timing control (VTC) system controls the timing of the intake camshaft. It uses a motor to operate the VTC actuator so the valve timing is optimized depending on driving conditions. The powertrain control module (PCM) monitors the phase control command and the actual timing of the camshaft by using the camshaft position (CMP) sensor A. If the phase difference between them is excessive for a certain time period, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 15.0 seconds or more |
| DTC Type | Two drive cycles, MIL on |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| VTC operating voltage | 6 V | - |
| Engine coolant temperature [ECT Sensor 1] | - | 244 deg.F (118 deg.C) |
| Engine speed [Engine Speed] | 500 RPM | - |
| Battery voltage | 10.5 V | - |
[ ]: HDS Parameter
Malfunction Threshold
The phase difference between the phase control command and the actual phase of the intake camshaft is 20.0 deg. or more for at least 15 seconds.
Possible Cause
- VTC actuator stuck
- VTC actuator response delay
- Electric VTC motor lock
- Electric VTC motor failure
- Electric VTC failure
Confirmation Procedure
Operating Condition
- Enter the maintenance mode, than start the engine. Hold the engine speed [Engine Speed] at 3, 000 RPM without load (in P or N) until the radiator fan comes on.
- Drive the vehicle at a steady speed between 25 - 75 mph (40 - 120 km/h) for at least 15 seconds.
- Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.
With the HDS
Select the VTC TEST in the INSPECTION MENU with the HDS, then select the IN-VTC.
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC and the freeze data are stored.
Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the 12 volt battery.