How do you check the Dash lights on my1986 c30 Motorhome They do not work

SOURCE: CHEVY 1500 TRUCK HEADLIGHTS TURN OFF WHEN YOU TURN ON SWITCH

If you have replaced the switch, and it is still doing it it sounds like you definately have a short somewhere in your wiring. On the other hand if the dimmer is in the turn signal arm ( forward bright back dim ) the problem could also be there in the dimmer switch, such as a short being caused by that dimmer switch being faulty.Auto Zone and Discount Auto Parts both test a lot of your electrical problems for free, and/or may have some knowledge to more accurately pin point the problem. Not sure about Pep Boys or some of the other discount auto part chains.

SOURCE: dash lights and tail light not working

Head light Switch Most likley

SOURCE: no front, or rear running lights, or dash lights

check tailight and instr light fuse with a test light rather than visably

SOURCE: No Brake Lights 1993 Chevy Astro Van

Check the ground wire & leads, if not try the multi-function switch in the column

SOURCE: 02 SS Monte Carlo , dash lights have quit working,

this only occured when the ambient light sensor turned on the headlights when it got to dark. if that is happening then check the headlight switch, the one that also dims the interior lights. mine had a burnt connector and fried the circuit board. replaced it and it works good. check for lose wires and connectors in there as well which likely caused the short.