Throttle Actuator A Control System - Idle Position Not Learned

Where it lives

For P2176, the description names the actuator as the part involved.

Check these first

• A dirty throttle body preventing a clean idle relearn
• A throttle position sensor calibration fault
• A wiring fault between the throttle actuator A and the ECM
• A failed throttle actuator A
• Low battery voltage during the relearn

What to do next

1. Read the throttle position and idle speed on a scan tool
2. Clean the throttle body of carbon
3. Check the battery voltage before the relearn
4. Run the idle relearn procedure with a scan tool
5. Check the throttle actuator A wiring if the relearn will not complete
6. Clear the code and retest

Look up another code