Saab Head Light bulb check Relay Up for sale is a saab 900 or 9000 Headlight blub check relay. This is the primary cause of intermittant headlight function on saabs. the pins on the relay can become burnt and it may stop functioning. Another problem with these relays is the springs can give out causing the relay to stop functioning one or both lights, or one or both highbeams. this can sometimes be noted by shaking the relay and hearing things rattle around inside it. These are located in the box under the hood of the car, they just pull out and are easy to replace yourself. This fits most 94-02 saabs, and more. this is also a good part to keep as an extra! they are well over $100 at the dealer... Check your part number to verify you have the right one. I have several of these listed, some are primary relays some are the secondary relays. The part number on this unit is-- 9524836