Head light...No power

[Von Rottes]

alright so, the onlything i have left on fix on my truck is another brakeline and i thought i just needed a new headlight....

But it seems there is no power going to the left headlight.
multimeter shower there was no volts and no ohms.
But checking all the connections at the wiring harness there were no "visible" problems.

ideas of what it could be?

[Jongo88]

alright so, the onlything i have left on fix on my truck is another brakeline and i thought i just needed a new headlight....

But it seems there is no power going to the left headlight.
multimeter shower there was no volts and no ohms.
But checking all the connections at the wiring harness there were no "visible" problems.

ideas of what it could be?
???? Is it getting wet???

[Von Rottes]

???? Is it getting wet???
sorry, head up my ass.
Multimeter showed

[Mikz86TA]

I would start by telling us what year.

With the meter, put the ground probe on the harness's ground pin and check the pos. wire with the pos. probe and note the voltage if any.
Then put the ground probe on the chassis ground or direct to the battery ground terminal. Note the voltage there if any.

Of course make surethat the light switch is on.

If there is a good bit of voltage difference or terminal ground shows volts and harness ground does not, then you have a short/break in the ground wire.
If you have low or no power either way, then your hot side is the issue.
On 2Gen late-model trucks, there is a seperate left/right fuses and relays. Check those next. If you havent already checked fuses.

Since you have one lamp that is good, check those wires also and get a base for what you are looking for on your meter test. Also swap lamps to eliminate that as the problem.

[XTREME80]

X2 on what Mike said. Hit me up and ask nicely and i could get you a wiring diagram that might help. J/K:D:D
Get me the year model and might could help.


Shawn.:D

[spideyjected]

headlight switch?

[blowns10]

headlight switch?
That was my first thought!

also X3 on what Mike said:

-check bulbs, fuses, swap lamps, check for breaks in the wires, frayed wires, damaged wires, check the relays, the connections to make sure they are good, check the grounds.....double check or even triple check to make sure everything is in good order. Late.