Well the second time I've seen this now so I thought I'd post a heads up in case any other 240 owners want to check for this. In the '86 and later cars there's a relay in the driver's footwell or behind the dash depending on the year which supplies power to the headlights when the ignition is on. Two cars I've worked on have experienced total headlight failure; the parking lights will work, but turn the headlights on and
*all* the exterior marker lights and dash lights go out. In both cases I found the plug on the relay had melted down and the connections oxidized. I was able to pop most of the wires out of the melted shell and put them in a "new" socket shell from the junkyard. One wire had a burned connector so I soldered a new piece on with a connector from the replacement socket. The relay had one burned contact blade so I replaced it as well, and gave the pins of the "new" one a shot of DeOxit for good measure. You can find the relay by turning the headlights off and on while searching for the source of the click under the dash.- posted
15 years ago