S242 hot terminal

[GMC-John]

My 1994 has always had no power to the (1) convenience center, (2) cigarette lighter (3)radio and (4) the dome lights. All of these pick up power off S242 which is downstream of the "courtesy fuse" Where the heck is this terminal?

[Robyn]

"S242"

The S means "Splice"

Going to be in a wire harness

There is not a "Terminal" as such

Sort out one of the wires that should be HOT that is not and start tracing it back in the harness.

Be sure both sides of the fuse have power before tearing into stuff.

I have seen the connectors in the fuse box (Convenience center) corrode or otherwise not deliver power.


You might consider checking the wire as it leaves the center (Carefully probe the wire with a pin and check for voltage.

I have never seen an "Splice" from the factory go bad......unless somebody has been messing with things.

Dug out my factory schematic book
Here is a piccy of the under dash area on the drivers side
RH side of the piccy is the dash area by the drivers door * marks the S242 location

Orange wire comes out of the convenience center and the splits into several orange wires at S242

[GMC-John]

I have a dead short across the CTSY fuse since it blows a 20 amp fuse instantly. So..to speed things up for now I just need a place to hook into an ACC/Run spot that I can splice into for the radio. Any ideas? How about the long narrow connector under the dashboard mounted on the steering column?
Secondly, how do you get the fuse box out of a 1994? Can you insert the brass contact plate into the fuse box and possibly have it work? My RR wiper slot in the fuse box would work for ACC switched power but there is no brass fuse conductor in the fuse box plate there.

[Robyn]

Use the hot side of the same fuse that is blowing

Remove the fuse and plug in a fuse holder and the make up a temporary wire to feed the radio.....

Do not use a non fused line.....lest thee find maximum smoke.

This may be a shorted ciggy butt socket

My suspicion is one of the items fed off that circuit is the fault and not the wire itself....Unless somebody has been mucking around in there