2012 W900 left brake light

[Truckdriven]

(10-29-2022 )Rawze Wrote:  Just a guess...

That node will act up if it gets poor power connections to it...

It is very common to get corrosion in the wiring harness between the outside fuse panel on the drivers side and the chassis node (under the cab)... before it gets to the node.

Wouldn't that cause a low power supply fault? I'll check the power supply anyway to verify it