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wiring diagnostics

blacksnapon

blacksnapon

Moderator
Staff member
9,461
301
waynesville,mo.
ETO09201_1_.JPG
the left front lights are inop. Using this diagram, find the cause. There is power at the c273 connector (the main light switch). Connector c262 has power, and all right front lights work. Where would you start looking?
 
lenny1carl

lenny1carl

7,086
459
upst ny
i ALWAYS start with grounds after checking for voltage
 
6L PWR

6L PWR

Kansas Chapter member
7,961
255
Osage Beach, MO
Based on the given info, a ground issue seems to be the only thing other than all three bulbs burnt out at the same time.
 
lil_dq

lil_dq

Let 'er eat boys!
6,933
265
Union, MO
It could be like what happened to the Denali...It was a former police/fire rig and they had the wig wags hooked up. then when they sold it and took them off the wiring connector came loose later on down the road! LOL
 
Fellro

Fellro

Moderator
Staff member
7,953
360
Iowa County, Iowa
With all lights down, can't hardly be anything less than a ground...
I had a wierd one once on my dad's 84, the only marker light that worked on the whole truck was the passenger front side marker... then they all came back later...
 
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