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Thanks for the info! The power supply for the calibration unit has a blade attached to the end of the wire that plugs into the fuse box. The instructions say to pull fuse #9, insert the blade on the hot side and put the fuse back in. That's not possible. There is a slot to the right of #9 that...

Thanks for the info! The power supply for the calibration unit has a blade attached to the end of the wire that plugs into the fuse box. The instructions say to pull fuse #9, insert the blade on the hot side and put the fuse back in. That's not possible. There is a slot to the right of #9 that...

What are the other codes?

Speedo quit working a couple weeks ago. Put in a new VSS and no help. After weeks of checking wires and continuity I finally found the issue. Power to the TruSpeed speed sensor calibration unit came out of the fuse box. Plugged it back in last night and speedometer worked. Driving down the...

Looks like the VSS is good. Can't post the video, but it alternated between these two signals as I spun the drive-line slowly. What now? Where else does this signal wire go to other than the PCM?

Should I also pull the plug to the speedo/tach cluster and check and see if I'm getting voltage to the #13 pin? I believe that's the pin to the speedo.

Appreciate it! I'll check that nut then. I DID just put in a new transmission output shaft seal a couple weeks ago, so maybe it didn't get tight enough.

I will, but how would that affect the VSS?

1995 Wrangler with Teraflex Extreme Short Shaft SYE. Speedometer stopped working a few days ago. Replaced the VSS and still doesn't work. Took the dash apart and inspected the speedometer ribbons and they look clean (see pic). Where do I go from here??