|  1. At the switched off ignition disconnect tips from candles накаливания.  | 
 
 
 |  2. Connect an indicator wire to the plug + the storage battery. | 
 
 
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 3. Serially concern with the indicator of 2 candles накаливания 1. In each case the indicator light-emitting diode should burn. If on any candle the light-emitting diode has not lighted up, means, the candle is faulty also it it is necessary to replace. | 
 
 
 | 4. Establish a new candle and tighten its moment 15 Нм. |