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Circuit/System Testing

  1. Ensure proper operation of the CKP sensor. Refer to DTC P0335 or P0336 .
  2. Ensure proper operation of the transmission output speed sensor (OSS). Refer to DTC P0722 (2.4L Hybrid) or DTC P0722 (3.5L) for the 4T45-E transmission.
  3. Inspect for any condition that can increase idle speed.
    • Vacuum leaks
    • Un-metered air entering the engine, after the mass airflow
    • A faulty positive crankcase ventilation (PCV) valve
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