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.
Work Procedure
Wastegate valve closed position learning is a function of ECM to learn the fully closed position of the wastegate valve by monitoring the wastegate valve position sensor output signal. It must be performed under any of the following conditions:
- Turbocharger assembly is replaced or removed.
- ECM is replaced.
- Engine assembly is replaced.
- PERFORM WASTEGATE VALVE CLOSED POSITION LEARNING VALUE CLEAR
- On the CONSULT screen, select "ENGINE" >> "WORK SUPPORT" >> "WASTEGATE ACTUATOR POSI LEARN VALUE CLEAR".
- Touch "Start".
- Check that "COMPLETED" is displayed. If "COMPLETED" is not displayed, repeat the above.
GO TO 2.
- PERFORM WASTEGATE VALVE CLOSED POSITION LEARNING
- Check that the engine is cold [coolant temperature: 50 deg.C (122 deg.F) or less].
- Start the engine and let it idle for 10 seconds.
- Check that "COMPLETED" is displayed.
END
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.