Hino FD - B Adjust Light
We have a 98 model fd here that is buzzing and showing the light pictured below when you touch the brakes.
All the brakes are fine and i just adjusted them, they have plenty of meat left on them.
Has anyone seen this before?
This warning signals excessive travel in either the front or rear brake master cylinder. There is a simple push switch screwed into the spring end of each air over hydraulic cylinder. If you have no fluid leaks and brakes are adjusted it will be either a faulty switch or internal leakage in the master cylinder. I have seen both. You can unplug switches one at a time to work out which one is bad.
thanks mate, i just blew out all the electronics on the air tank and it went away. Was after washing it.