The faulty bulp relay senses if there is a difference in the current going
to the left side lamps compared to the right side lamps. If you have
installed bulps with different watts on each side that might be a problem.
That warnimg light detects not only a "dud" bulb but also any inbalance
between pairs, so try cleaning bulb contacts and sockets. If that fails to
effect a cure, replace bulbs with new matching pairs, especially tail
Have you checked the ground wires going through the hinges.
That was the problem on my car. It's hell to change, so I pulled some new
ones on the inside of the car.
Regards Sven E
1998 V-70 2,0 LT
1993 Volvo 240 GL
It's originally clipped to the metal under the dash, right beside the
ignition switch. Often if it's taken out for any reason it's just left
hanging. Look for a cylinder 4-5 cm in diameter, 8-9 cm long. It's red
on our cars with a third brake light, black on the earlier ones without.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.