RottiesOnBoard

New to the boards but I got some great info searching posts as a guest for the past month. Now a member and have a more specific problem. Posted in another thread but no responses. Anyway, I have a 93 4Runner V6 auto trans with 4WD. No speedometer, cruise, odometer. ECU throws a Code 42 and O/D light flashes after traveling over 10 miles.

After searching the boards here, I removed TVSS and tested with multimeter-no reading. Opened the back of the part and noticed the round pick up magnet under the triangular cover was cracked.

I tried the TVSS rebuild as seen at https://www.yotatech.com/forums/f116/speed-sensor-rebuilt-write-up-250730/ (thanks to Go Blue! It was a great write up but didn’t work in my case probably because the magnet was cracked.)

Replaced TVSS Part #8318135051 using a vendor mentioned on one of the VSS threads, reset ECU, drove 2 miles, still no speedometer, cruise, or odometer. ECU threw another Code 42 within 2 miles. Disconnected 3-prong plug on TVSS and probed the harness using a multimeter with engine running and got intermittent “ping” signal (I’m assuming the reading was the ECU pinging the TVSS for information).

Removed new TVSS and got a signal on the multimeter while spinning the gear by hand.

So now I hit a road block. What’s the logical next step? Yank the dash and test connections on speedometer portion of instrument cluster?

Also, I’m looking at buying a 4Runner to part out depending on the year. It’s a V6 4x4 auto sitting in front of a junk yard/tow recovery place down the street. What model year range parts are compatible with a 93? Will parts from a 90 ~ 95 work or should I look at just 92~94 model year 4Runners to part out? The truck I’m looking at was a multiple roll over and will be a total as far as insurance in concerned. Parts for my 93 are hard to come by in this area and the junkyards won’t part out individual pieces like a TVSS. They want you to buy the whole tranny for just that one part. Therefore my thought to just buy the entire heap (depending on model year) and strip down what’s still good on it, then sell what’s left for scrap.

Thoughts, ideas, opinions greatly appreciated!

Team420

for the most part, parts between the 90-95 models are interchangeable, however, there are some variations between the electrical connectors. One example... I had a 92 4runner, totaled it, the alternator in my 93 went, so I pulled the alt from my 92, got her all bolted in, and go to reconnect the wire harness, and blam, its a square plug, trying to fit into a round hole. The wire colors were all the same, and there were as many on both, so I just wired in the connector from the 92, still running fine like that 2day, after 5 years.