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Mil Check: Cabriolet

  1. Turn ignition on. MIL should light. If MIL lights, go to step 3). If MIL does not light, go to next step.
  2. MIL is not lighting due to faulty wiring or an open circuit. Turn ignition off. Inspect MIL bulb. If bulb is okay, check wiring between MIL and PCM. PCM is located in floor cavity under passenger side carpeting. See WIRING DIAGRAMS article. If wiring is okay, replace faulty PCM. See PCM REPLACING  .
  3. Start engine and let it idle. MIL should go out after a few seconds. If MIL goes out, MIL is functioning properly. If MIL does not go out, check for any stored DTCs. See RETRIEVING CODES  under SELF-DIAGNOSTIC SYSTEM. If DTCs are stored, repair as necessary. If no DTCs are stored, go to next step.
  4. MIL is on continuously due to a short to ground. Turn ignition off. Check for a short circuit between MIL and Powertrain Control Module (PCM). See WIRING DIAGRAMS article. Repair as necessary. If wiring is okay, replace faulty PCM. See PCM REPLACING  .
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