Timberwolf

I have a fusible link at the junction block that is shorting to ground somewhere along the line. It's one of the two orange fusible links there. Of course it splices to red and disappears ina harness. If I can find whre those links go, I can run a continuity test and determine which one I am looking for.

Anyone help?

Timberwolf

do they run to the fuse/relay box? I can put a volt meter in there, one to each side of the fuse slot and I get 12v when that one certain link is put back on the junction block

shoebox

They go various places, including both fuse panels. It should not be too hard to figure out if you know what is not working.

Timberwolf

well, it's the ignition fuse that keeps blowing. Like I said, I have continuity to ground on one side of the fuse socket, and +12v on the other...

shoebox

I must have misunderstood. I thought you meant one of the fusible links was blown.

Actually, the ignition fuse gets it power via the ignition switch. The switch gets power from one of the fusible links.

You seem to be getting power ok to the fuse, because you see the 12v. Leave the fuse out, put your meter on the side that has the ground and pull the connector off the ICM. See if your ground goes away. If not, pull the connectors on the coil and see what you have.

I am going by 1995 diagrams, which I think are the same.

Timberwolf

ok, I'll try the ICM tomorrow. I already have the coil pack unplugged

shoebox

In that case, unplugging the ICM will probably not do any good (you can try). The ICM gets its power through the connection to the coil.

Is your car an A4? Don't see anything in the sig. There is a branch of that circuit that goes to the tranny that could be shorted to ground. Do you get a low resistance reading (like just a few ohms)?

You also might want to try this: Watch your meter and unplug C100 (that is the 10 wire connector over by the pcm that has the green and blue fan relay wires in it).

I would feel more confident if I knew for sure that the 1994 wiring is the same as what I am looking at in the 1995 book.

Mtrhds94Z

Out of 94 manual:
Ign fuse 11 should be hot only when ign key is in run or start position.[and ign sw gets feed from fusible link E]

The 10 amp IGN fuse feeds:
pink wire to ign coil plug.
pink wire to E in A4 trans plug, [which feeds TCC ,3-2, 2-3, and 1-2, solenoids.]

It should be pink wire G in the C100 plug[ that Rob describes above]
Looks like the 94 is the same as 95 for that circuit.[ I concur with Rob's info]

shoebox

That sounds the same, Charlie. Thanks for checking that out.

Timberwolf

I pulled the fuse block such that I can see the wires to the back of the sockets, and they were indeed pink. so it woudl appear I have a short to ground somewhere along the pink wire running from the fuse socket to the coil, correct?

shoebox

Did you try my previous suggestions?

Timberwolf

not the ICM, but like I said, the coil is already unplugged...

I'm at work, so I can't get back to work on it more til 5 EST

Mtrhds94Z

Don't forget the pink wire to the trans right side plug[wire E in that plug] as stated above fuse 11 feeds that too..
You might unplug and test that also..

Timberwolf

Looking at the back of the fuse block, it appears they are fused seperately though they are fed from the same fusible link. We did just replace the trans the other day, if one of the solenoids in the valve body shorted, could that cause it to blow the ignition fuse?

Timberwolf

ok, I am showing continuity with ground on both the ignition and a/c-cruise pink wires in the fuse block...
Also showing ground at the pink wire termination at the coil. ICM is disconnected, no continuity with ground on that pink wire

Does that help you guys at all?