FRED555 wrote:
Took apart the plastic switch on brake light and emery clothes three contactors inside. This fixed the brake light and the annoying rattle when stepping on brakes.
Can anyone described the exact location of the other part that lights idiot light below radio? I cannot seem to find it. Also what is the idiot light supposed to warning of?
Went to take RV to storage and and stalled out a light. Would not restart. Beware the Duramax MUST have frequent fuel filter changes. Fuel filter cost $30 tow out of middle of road cost $100. I for one will do every oil change now.
The light can come on from several locations.
1. Brake pedal switch.
2. Hydro Boost flow switch. Located under brake master cylinder.
3. Hydro Boost motor. Also under brake master cylinder.
4. Low brake fluid level. On side of master cylinder.
Here is a drawing of the electrical circuit. It is small. Hope you can read it. You need to click on drawing to get it bigger.