Dashboard issues

[rkspaz61]

Trying to locate diodes that control the parking brake indictor in the dash board gauge cluster. I removed the dash board gauge assy and metered the diodes in the dash cluster. I was looking for the reason why the parking brake light stays on and the audible alarm sounds. The braking system works great. When I metered the diodes, there were 2 not getting any reading from my Fluke meter. I cant find any to replace them with online. Help anyone.

 

[JamaicaJoe]

Have you checked the actual parking brake switch?

 

[99WhiteC5Coupe]

Trying to locate diodes that control the parking brake indictor in the dash board gauge cluster. I removed the dash board gauge assy and metered the diodes in the dash cluster. I was looking for the reason why the parking brake light stays on and the audible alarm sounds. The braking system works great. When I meted the diodes, there were 2 not getting any reading from my Fluke meter. I cant find any to replace them with online. Help anyone.

On some vehicles, when the brake master cylinder is low on fluid (or the switch in the master cylinder is bad), it will illuminate the parking brake light and sound a chime.

 

[Hamfisted]

Yeah a new parking brake switch is less than $10. I would check that out first before ripping the instrument cluster apart.





Expedition Parking Brake Switch at Rock Auto






.

 

[lbv150]

I don't even know what to say. You went for the most least likely component, hard to get at too, that would fail in the truck. If you want to play techie, then set up a laptop with Forscan & cables and play with the truck. As others have said start with checking the brake circuit.