There is no quick test for your problem. The main power supply from the circuit breaker should be checked. Each relay can be tested for coil operation, contacts should be checked within the relay for burning or pitting. ( Three relays total ). There are limit switches on the head light doors. They should be checked for operation, ( make and brake circuit ). All ground conections should be looked at, check for broken wires or corrosion. All wire connections should be checked for the same. Check the head light motors them selves for operation. The factory motors could be sized. A little information, the after market door motors are heaver built then the factory, better gear reduction for operation. Good luck.