Atany auto parts store and most Auto Depts you can get a thing that looks like an old fashion ice pick with a wire haging out the transparant or tarnslucent handle An Automotive test light Way better than a volt meter for this. Two reasons.. It puts a load (About 1/2 amp) on the circuit v/s the tiny load (abou 1mA) of the meter. and instant indication no need to "Read the meter"
Clip to negative battry tip to positive LIGHT good. No light likely bulb needs reseating.
Move clip to unpainted frame part. LIght good. no light bad negative connection
Move out along the positive line with the tip. Touch each end of the battery cable and whatever it connects to each terminal
Do this unplugged
Problem exists between bright and dark.
