Join Date: Feb 2007
Nominated 16 Times in 67 Posts
TOTW/F/M Award(s): 28
Thanked 5,201 Times in 4,712 Posts
Using a multi-meter check the resistance of both types of bulbs and does the service light go out when the correct bulbs are put back - if it is a resistance problem it could be down to poor quality bulbs as I know some bulbs have a built in resistor to compensate. This not only applies to car electrics but also mains systems whereby the trip on the distribution board goes belly up.
Currently in madnoel10's garage:
Honda Civic 1.4l