-The front corner lights, tail lights, and license plate lights all work when the headlight switch is at 12:00 (parking lights) but do not when the headlight switch is at 2:00 (headlights).

OK. So the front corners, tails, and license lights are NOT on when the headlights are on, right? (The front corners are ON when headlights are on.)


That's a good clue. Since only the tails go through the BFWS relay, and the others do not, I think the problem is not in that relay.

Lemme re-read the wiring diagram. Hmmm, new info here.

When the headlight switch is in parks-only position 12:00, power to the lights in question goes as the route I described in my first post.

HOWEVER, with the switch in headlight position 2:00, the route changes. Power to the fuses that feed the parks, tails and license lights flows NOT from terminal #58 on the headlight switch.

It flows to the fuses from the Headlight relay, terminal #87a. That relay is, IIRC, not found in another application on the 240s. It is a double-pole single throw relay, even though the prong configuration looks like a SPDT type.

It is a cube-looking relay, located usually above the driver's right toe. You will need to pull the felt sound pad, lie on your back and look up in there with a flashlight. I found that it is better for my eyes to do this after dark.
You may want to clean the carpet a bit, too.

Identify the relay by the colors of the wires going to the base. The terminal numbers cannot be seen, I will list them anyway.

Blue-white..#86...(hot from h-light switch) (shows yellow on some diagrams)
Black.......#85...(to a ground)
Green-red...#30...(to back of fuses #6-#10, hot from battery all the time)
White.......#87a..(to Fuses #15 and #16 for parks, tails, Lic lights)
Yellow......#87...(to step relay for headlights)

Before doing all that, I recommend that you hit a junk yard and pick up a relay or two. One should be good. Look at the prongs to check the terminal numbers, and check the condition of the base. If the base is good, get that, too. Clip wires with long-as-possible leads. Could be that your problem is the relay base (they overheat).


Hope this helps.

Goog luck,

Bob

:>)