Reader Question I have a 1996 Lincoln Towncar. After driving with the headlights on high beams for about 20 miles, they go out. Start blinking. I have replaced the headlight switch, the dimmer switch, and the lamp drive module. What is the problem?? Is there a relay or something that is overheating?
Hey Cherokee…..cool name!
My first suggestion would be to replace the headlight switch, but you already did that. I called my friend at Ford and he said the same thing, the headlight switch. He also asked if you might have had a burnt connector at the headlight switch, says they can overheat and melt the connectors. I have personally seen that as well. Make sure the wires and connections are in good shape and fit tight to the switch.
Also, there is a difference in automatic headlights and non auto with the headlight switch, make sure you got the correct switch.
Austin C. Davis
Reader Follow up
Austin, Thanks for the reply. I will tell you what I found. After replacing the headlight switch, the multi function switch (Dimmer), and the lamp drive module THREE times in the last four months, replacing the headlight bulbs (from talking to the Lincoln dealers who could tell me nothing else). I finally got a schematic of the system.
After searching, I found, under the dash a fuse box where the circuit breakers for the electric seats were. In it was a breaker for the lamp drive module. It was an 18 amp. I replaced it with a 20 amp and the lights are doing fine. So, why couldn’t the dealer tell me there was a breaker for the module??? They swore there was none for the headlights. Oh well…… Just thought you would want to know.
Thanks for your update Cherokee
Thanks for the update. I talked with the parts and service guys at my local Ford dealer about it, and they did not mention it either. It is a 10 year old vehicle, and the part is probably not something they see going bad very often….maybe never, so in their defense they probably did not know about it or forgot it was there in that year model.
I will post your answer on the website, thanks for sharing. Glad YOU fixed it. I learned something today!
Austin C. Davis