Brake light problem

[dheavychevy38]

Ok my right rear turn signal and brake light don't work and yes i already checked the bulb and to see if there is power back there and the answer is no. It is on a 89 k5 any ideas or does anyone have a wireing diagram thanks.

 

[dwoods]

This my help

I made a new harness from this diagram and it work like new. Iam fairly sure your K-5 blazer is the same as my 87 V-20.

 

[dheavychevy38]

i checked i have no power right after the fire wall so it must be in the cab part.

 

[frankin5]

most likely the turn singal switch in the column