Non-specific to these trucks, but there is always someone knowledgeable online here. Good learner, understand the basics of grounding and shorted wires, but haven’t spent much time with electrical for this to be obvious to me. Was chipping ice off my driver-side headlight last week, and the little “shock” toggled the light off and then back on. A couple days ago it turned off while chipping ice, and haven’t been able to get it to come back on. Assumed weak connection somewhere at/near the connector/bulb. Given we are not far off from solstice, there is a lot of dark driving this time of year in AK, so lights are nice....
Bulb is good, fuse is good, high-beam and running lights both work. No issues with passenger headlight at all.
Wires going into each connector are different per side, but test light results are as follows
Good (passenger) headlight:
Grounded to body = terminal w/ thicker red/white wire lights up, but not thinner white/black wire
Grounded to either terminal in connector = other terminal lights up in both cases
Bad (driver) headlight:
Grounded to body = both terminals light up (both are red wires, one w/ yellow and other w/ blue tracer)
Grounded to either terminal in connector = no light on either terminal
So, what’s funky here? Grounded to body, getting power to both wires on the bad headlight, when it should just be the hot wire? Keep in mind the small shock of chipping ice off the lens is what affected it, so I can’t imagine it’s upstream from the connector, at least not far. Short? Ground?
Bulb is good, fuse is good, high-beam and running lights both work. No issues with passenger headlight at all.
Wires going into each connector are different per side, but test light results are as follows
Good (passenger) headlight:
Grounded to body = terminal w/ thicker red/white wire lights up, but not thinner white/black wire
Grounded to either terminal in connector = other terminal lights up in both cases
Bad (driver) headlight:
Grounded to body = both terminals light up (both are red wires, one w/ yellow and other w/ blue tracer)
Grounded to either terminal in connector = no light on either terminal
So, what’s funky here? Grounded to body, getting power to both wires on the bad headlight, when it should just be the hot wire? Keep in mind the small shock of chipping ice off the lens is what affected it, so I can’t imagine it’s upstream from the connector, at least not far. Short? Ground?
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