04 Pete 385

04 pete 385 cat c13. Unit has no power going to mechanical oil or coolant temperature gauge.have checked all fuses and relay switches. Cannot find a wiring diagram for the life of me on the internet anywhere, thanks in advance for any help

 

If it's mechanical, the only power going to it will be for the light.

 

Thanks for the reply
The power is the 12 volt reference. Bad fuse holder in the fuse box. Any thoughts why the same truck will lock up rear brakes with anti lock brake ststem

 

I'm assuming you mean it locks up the rear drive axle but not the front drive? If so it probably only has speed sensors on the front drive axle and a single modulator valve to control each side.