Fan/Fan Switch Test

[ggunder]

My fan has stopped working in my 72 240Z. All the fuses that I can find look fine, but I am wondering if I am missing an in-line fuse somewhere. I do have the fan switch removed (whew!) and was wondering if there was a way to test it with a multimeter. It has a plug with 6 wires attached to it (black, red, white in one row and green, white and blue in another row).

Thanks for your input and have an excellent Thanksgiving!

[EScanlon]

The Heater Fan IS powered through an in-line fuse away from the main fuse box. Look for a Blue wilre that turns to Red as it comes out of the in-line fuse holder (note, it could also be Red on both sides, this is a mis-leading item on just about every wiring schematic I've looked at.)

Testing the switch will take me a bit as I'll have to see if I have one handy.

FWIW

E

[Zs-ondabrain]

That inline fuse case usually melts from over use. It should be located between the switch and the motor, and like E said, should have a red and blue wire or both of one color. It's a white plastic fuse holder and probably melted to the point that the contacts can't touch the fuse ends. You're best bet is to cut it out and replace it with a newer fuse holder.

[ggunder]

It is exactly as described above, a melted in-line fuse. I tested the motor and it works fine. Once I cut out the offending fuse holder there is not much wire available before it merges into the main bunch of wires that are wrapped and inaccessible. There is a newer style fuse holder for the plug-in type fuses in my electrical spares, maybe I will splice that in. I will do some searches now to see how many amps the fuse should be. Thanks to both you guys for the tips!