Checking Camshaft Control, Inlet

Checking camshaft control, inlet

Checking the function

Note! The check below refers to camshaft control inlet and cannot be performed on cars that do not have control of camshaft inlet.

Hint: The malfunction may be intermittent, the check below is relevant when/just before the symptom appears. If diagnostic trouble code for camshaft control is stored, then troubleshoot that diagnostic trouble code first.




- Start the engine and run it to normal operating temperature. Wait until the engine coolant temperature (ECT) reaches 80°C.
Read off the camshaft control's actual and desired values when control starts. This takes approx. 2 minutes after engine start.
Check that the values match an accuracy of approx. +/- 8 °C.

Hint: Incorrect values can be caused by:
- Impurities in the reset valve camshaft, try cleaning the valve.
- Defective reset valve camshaft.

Remedy as necessary.

Other information
- VVT solenoid, inspection and cleaning VVT Solenoid, Inspection and Cleaning
- Camshaft seal/variable valve timing (VVT) unit, replacing Camshaft Seal/Variable Valve Timing (VVT) Unit, Replacing









Is the function OK?

Yes - Fault Found

No - No Fault Found

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