Hi All,
I installed relays in my '72 GMC. I followed the diagram below:
As a note I am using H4 headlights for my low beams. Standard H1 sealed bulbs for my high beams.
When I hit my switch the high beams work, which in turn means all 4 of my lights are on. When I hit the dimmer switch nothing turns on. I know the relays are getting 12V from the battery. I used a 30 amp breaker fuse in between the power from the relay to the battery. I know ground is good. I used the light green and tan wires that were running along the driver side underneath the hood and used those to connect to the relay as stated in the wiring diagram.
Could I possibly have a bad relay? I know the lights work cause they all turn on and the dimmer switch is new. Is there some fuse I need to worry about that could be causing the low beams not to work?