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Home › Lexus › 2004 › LS 430 › Repair and Diagnosis › Engine Performance › System › SFI System - Diagnosis › Diagnosis System › Check Mil

Check Mil

  1. Check that the MIL illuminates when turning the ignition switch ON.

    If the MIL does not illuminate, there is a problem in the MIL circuit (refer to MIL CIRCUIT  )

  2. When the engine is started, the MIL should turn off.
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