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Diagnostic procedure

WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the battery negative terminal, and reconnect after at least 10 seconds have passed.
  2. Idle the engine until engine coolant temperature is 80°C (176°F).
  3. Stop the engine to decrease the engine coolant temperature down to 40°C (104°F) or less.
    NOTE: Do not let engine coolant temperature drop to 5°C (41 °F) or less.
  4. Idle the engine until engine coolant temperature is 80°C (176°F).
  5. Stop the engine to decrease the engine coolant temperature down to 40°C (104°F) or less.
    NOTE: Do not let engine coolant temperature drop to 5°C (41 °F) or less.
  6. Idle the engine.
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