1. At the switched-off ignition disconnect tips from incandescence candles. |
2. Connect an indicator wire to the + plug of the rechargeable battery. |
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3. Serially concern the indicator of 2 candles of an incandescence 1. In each case the light-emitting diode of the indicator has to burn. If on some candle the light-emitting diode did not light up, so the candle is faulty and it needs to be replaced. |
4. Establish a new candle and tighten its moment 15 N · m. |