Quote:
Originally Posted by vertigto
Silly question...how much of a difference is there if you don't use relays with sealed beam halogens?
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Depends on how much loss you have in the headlight wiring now.
If you can get to the plug on the back of the passenger's side headlight WITH THE LAMP PLUGGED IN...
Attach a voltmeter black lead to ground.
Turn on low beam headlights.
With the engine running at a high idle use the red lead to measure voltage at the battery + terminal. Record this as "measurement 1".
Now touch the red lead to left pin of the socket of the passenger's side right outer headlamp. Record this as "measurement 2".
Now touch the red lead to right pin of the socket of the passenger's side right outer headlamp. Record this as "measurement 3".
Now touch the red lead to center pin of the socket of the passenger's side right outer headlamp. Record this as "measurement 4".
Report the 4 measurements.