DTC Advanced Diagnostics: P0010 (2.0L Engine)

DTC P0010:  Variable Valve Timing Control (VTC) Oil Control Solenoid Valve A Malfunction

General Description 

Courtesy of HONDA, U.S.A., INC.

The variable valve timing control (VTC) system consists of the VTC actuator A, the VTC oil control solenoid valve A, various sensors, and the powertrain control module (PCM). The PCM controls the VTC oil control solenoid valve A by duty cycle and supplies hydraulic pressure to the advance chamber or the retard chamber in the actuator so the valve timing is optimized depending on the driving conditions (engine load, engine speed, and vehicle speed). If the difference between the VTC oil control solenoid valve A commanded current and the actual current is a specified current for a specified time, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type 

Execution	Continuous
Sequence	None
Duration	5 seconds or more
DTC Type	One drive cycle, MIL on

Enable Conditions 

Condition
State of the engine	Running

Malfunction Threshold 

The difference between the VTC oil control solenoid valve A commanded current and the actual current is more than 0.20 A for at least 5 seconds.

Possible Cause 

• VTC oil control solenoid valve A VTC line short to ground
• VTC oil control solenoid valve A VTC line open
• VTC oil control solenoid valve A failure
• PCM internal circuit failure

Confirmation Procedure 

Operating Condition 

• 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 5 seconds.

• Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

[ ]: HDS Parameter

With the HDS 

Select the VTC TEST in the Function Test with the HDS, then select the IN-VTC.

Diagnosis Details 

Conditions for setting the DTC 

When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, the freeze data, and the on-board snapshot are stored in the PCM memory.

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, the freeze data, and the on-board snapshot can be cleared with the scan tool clear command.