Troubleshooting

DTC P0012 Camshaft Position "A" - Timing Over - Retarded (Bank 1)

CIRCUIT DESCRIPTION

DTC Detecting Condtion:

VVT system controls the intake valve timing to proper timing in response to driving condition. The ECM controls Oil Control Valve (OCV) to make the intake valve timing properly, oil pressure controlled with OCV is supplied to the VVT controller, and then VVT controller changes relative position between the camshaft and the crankshaft.

Wiring Diagram:

INSPECTION PROCEDURE

HINT:
- If DTC P0011 or P0012 are displayed, check the left bank VVT system circuit.
- If DTC P0021 or P0022 are displayed, check the right bank VVT system circuit.
- Read freeze frame data using hand-held tester or OBD II scan tool, as freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful to determine whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean or rich, etc. at the time of the malfunction.

Step 1 - 2:

Step 3 - 7:

Step 8 - 10:

Hand-held tester

Step 1:

Step 2 - 4:

Step 5 - 8:

Step 9 - 10:

OBD II scan tool (Excluding hand-held tester)