Need some advice with my test lights

[Wheel Horse Kid 104]

Hi,

I just purchased a tractor last weekend that has a test light board. I tried out the test lights (with the test light switch) and only the engine oil test light works.

Any suggestions on how I can get the other test lights working?

Thanks!

[can whlvr 991]

they can be pretty challenging to diagnose,it could be bulbs,could be burnt connections,could be bad connections,could be the diodes or resistors(what ever the electronic components are called)on the circuit board,you should look up a long post about these boards by soi member,chuck