I'm putting some fog lamps on my car and I need to tap into the headlamp low beam power lead. Can someone tell me which wire this is. Thanks.

Oh yeah, it's a 1990 240. Thanks.

I can't tell you which color wire it is, but get your meter or test lamp. Remove the headlamp connector from one headlamp, and turn your low beams on. Put one test lead on a known good ground, then probe the three sockets in the connector with the other test lead. (Obviously the socket which shows 12-15v or makes the lamp light is the low beam socket). You should be able to tell which color wire gets to the low beam by peeling back the strain relief on the socket.

Smitty-

Thanks for the response (ended up figuring it out last night using the schematic). It's the blue one - the fact that the blue wire in the diagram comes from the bulb out indicator, and not the relay kind of threw me.