wiring diagnostics

[blacksnapon]

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?

 

[slmann]

squirrelman chewed through a wire. j/k

sorry Vince had to do it.

 

[lenny1carl]

i ALWAYS start with grounds after checking for voltage

 

[Bob Ayers]

i ALWAYS start with grounds after checking for voltage

I agree, check the connector and wiring for the left side grounds.

 

[6L PWR]

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]

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]

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...