02 Accord vtec
1. No speedo
2. No cruise
no blown fuses , no engine light , runs and drives as it should
scanner will pick up vehicle speed
ive tried it all I think junk yard clusters( 3 of them)
no aperent wiring issues that I have found
one thing that is odd when I check voltage on the vss circuit I get 4.77v with key on or off with the car in park or wheels spinning. 4.77v nothing ever changes.
Anyone have an idea? PCM maybe? Help!

 

Four or six cyl, auto or manual trans......number of doors might play into this so throw that out as well.

 

3.0L 6cly
Auto trans
4 doors

 

Did both of these problems appear at the same time?

What wire color (and where) were you getting 4.77V? What did you use as the ground for your volt meter?

 

I bought the car used so both where existing problems. I'm checking voltage on the blue/white wire (vss out from the pcm) ground is coming off a near by chassis ground and other depending where I'm checking. I've check voltage at the out of the pcm, behind the cluster and also at the cruise box under the dash. All the same 4.77v. I even cut the wire at the vss out at the pcm and ran a new one to the cluster to isolate anything else still no speedo. Weird part is with the vss out unplugged from the pcm I still get 4.77v on the blu/why everywhere else.

 

It looks like there are 3 wires going to the VSS; blk, blk/yel, and blu/wht.

Does the black yellow have 12V at the VSS when unplugged? Use a good body ground as the ground. Also use the blk wire on the VSS connector as your ground.

 

I havent checked the black yellow but I have checked the ground at the pcm and cluster, all are good. Thanks for you time and help!!!
This issue has become a little personal between me an the little Honda. Thanks again I will post results soon.

 

It looks like the V6 doesn't have a vehicle speed sensor. The vehicle speed comes from the countershaft speed sensor.

It is strange that you are getting 4.77V with the blu/wht removed from pin A9 on the PCM. Check that your volt meter can read 12V across the battery posts.

 

It actually has two vss sensors one on the top of trans and the other on the front /side. I've tried swapping them and there was no change. It's really strange with still seeing voltage and the blu/why wire being open from the pcm. I see voltage with the key on or off. I have to believe that they are functioning as they should with the car running, driving and shifting as it should be.
I'm new to the forum and I have to say I'm glad I joined you've been more then helpful!
Thanks again

ps I did unplug the vss (one on the top) and went for a drive. The immediately new something was up!! D4 light flashing engine light and drove terrible.

 

Well, this means the upper one was working (allowing the trans to shift correctly). This also means that you've isolated the problem to the side/front sensor and it's circuit.