If my heat is turned on the brake warning light comes on the blower does not work,if I push a power window button the brake light comes on when I put it in reverse the brake light comes on where do I look? Is this a ground problem?
brake light on when heat is turned on on 1991 Dodge Ram Van B350
Sounds like an electrical feedback problem. You will have to get a manual to check all for the vehicle wiring grounds. Also, inspect fuses, the bulkhead connectors (under the hood) for moisture, corrosion and loose terminals.