Strange headlamp problems on Saabs can often be attributed to a failing Headlamp relay. Here are a few common situations:
Issue1 - Headlamp switch will work backwards: Turn on the switch and theheadlights go off and turn off the switch and the headlights will goon.
Issue 2 - High beams will disappear. You will have nohighbeams. Be sure to check the headlight bulbs PRIOR to ordering therelay. Remember however that it is possible for both high beams burn out at the same time
Issue3 - High beams will not work only the low beams will.
Issue 4 - A single bulb setting (low or high) on either side will not work and bulb replacement will fix it.
You can sometimesfix these issues by removing the relay, taking off the cover andresoldering the connections on the relay bottom. To perform this repair, go to my illustrated tutorial at customsaab.com
In some cases youwill have to replace the relay to effect a long term cure. The aftermarket replacement can be had at Eeuroparts.com
for about $60.00:Name: Bulb Check Relay Part Code: 4109070A Brand: Description: Bulb check relay for any 9000 92-98, 900 94-98, 9-3 99-03, 9-5 all. KAE (Kaehler) made in Germany. Price: $59.90