Possible Causes
WARNING: This page is about a different car, the 2003 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
This DTC uses two-trip detection logic. DTC is set when idle speed continues to vary greatly from target speed. Possible causes are:
- Defective Positive Crankcase Ventilation (PCV) valve hose or connection.
- Air induction system malfunction.
- Defective ETCS.