Volvo Repair: no start no spark, volvo 740, little spark

Question
I have had this 1990 volvo 740 turbo for 5 years.
Yesterday I arrived home from work and changed
out the radio suppreser relay and the relay that
is mounted on the water overflow tank. While changing the relays wires touched had a little
spark I thought no problem. After changing relays
the car refused to start I had absalutly no spark.
What could be the problem? Any help would be great.

Answer
Hi Dexter,
         Sometimes you can ruin a relay or another sensative electrical part by just adding a hot wire to a non-hot terminal....even for a nanosecond.
          Install a new part and pray a little.
       I'm unaware of any reset switch...there may be one
in fact.
                       Good luck,
                                Bilbo