1994 Dodge Dakota High beams flashing

ITRADE1

MEMBER
1994 DODGE DAKOTA
6 CYL
2WD
MANUAL
210,000 MILES

I switch the high beams on and after driving awhile they start flashing on and off. I switch back to low beams and they work fine. Have already installed a new light switch as well as the dimmer switch. But still flashs after you drive a few miles on high beam anyy answers?

1 Reply

CARADIODOC

MECHANIC
33,742 POSTS

There's an auto-resetting circuit breaker built into the headlamp switch. The circuit is very simple and straight forward, not like on the newer complicated vehicles.

Start by unplugging one headlamp bulb. If the other one stays on, suspect too much current due to having the wrong bulbs installed. They should be 9004s. If the bulbs are correct, the next likely suspect would be a corroded splice or the wiring connector on one of the switches or where the wire goes through the firewall connector. Unplugging one bulb will cut the current flow in half which could also affect a bad connection or splice. The reduced current will cause less heat buildup at the bad connection. The easiest way to troubleshoot this is to connect a test light in various places in the circuit to see how far the voltage is getting and where it is lost.

Caradiodoc