I'm getting a pending code P0501 and Im told its linked to a fault with the VSS sensor. Thats wonderful news, but I need to know more about it. Where is it located on the D2. How to pin point it and how to fix it/what to replace? Ive read that the VSS is located on the transmission on D1 models, and some sources imply that on D2 models it uses the abs to monitor the speeds. Could it be the same thing as an ABS sensor?

A search on the forum suggests its not a common issue because there is very little information about it. Please help, it would be appreciated.

 

Go to the Rave CD and read up on tranny repairs looking for the 501 code and directions on testing and replacing.

 

Hey, TRIARII. Try searching for a thread titled "erratic speedometer?" or "Repairing the VSS" (a.k.a. vehicle speed sensor). Some Forum members were having trouble with the VSS around the same time this summer. We were having a lively discussion on 8/1/13; were you absent from class that day and forgot to get someone's notes ?

If a thread search doesn't work, go on Profile Statistics for S. Buzz, Tom R, archaeology_student, or me, and find our posts from 8/1/13. There's a link to a good "rebuild of VSS" write-up in that thread and discussion of other related issues that we were experiencing related to vehicle idling problems. We were also comparing pricing of new VSS vs. DIY rebuild. My VSS was replaced, but I can't explain to you exactly where the VSS is located b/c I was in driver's seat putting truck in neutral to facilitate the repair . But, I'm sure a Forum member who posted on that thread can provide you with good info .

 

Vss on d2 is vehicle speed signal, not sensor. It comes from the slabs computer.

 

Thanks for correcting me on that, Jafir. I apologize to TRIARII for giving him incorrect information . I guess I cut class that day, but Jafir takes good notes for me . I'm not very familiar with Dscvry II's, but leave it to LR to have VSS stand for 2 different components.

I do need to update that Range Rover thread that you offered me help on; it was the auxiliary coolant pump on supercharged RRs. That part should've been replaced under warranty, but it typically doesn't malfunction until the odometer passes 50,000mi. An example of the security felt when covered by a LR warranty... LOL.

 

Pain in the *** to find it because I assumed it was under the Disco 2 section in any rate I found all the threads you mentioned and I wonder if it applies to the D2? Cause I heard the VSS was moved on the D2 whereas on the D1 its located on the transmission. So before I start tearing everything apart and or buying parts I need to know where its located on the D2. But thanks for the useful info. Rockauto apparently sells the part so Ive I must I can order it though I hope mine is fixable.

 

On the last post I put up from RAVE, I thought it said on the DII it came from the wheel sensors, AND the transmission. I could be wrong, but I thought that's what I was reading.

 

It does but it's a fail safe, and comes in via the tcm. The slabs signal is what is used by most of the computers.

 

Alright you guys I'm still stumped here because pending code P0501 has not returned in weeks! Driving habits are the same, same distances driven to and from work, same errands each week and same hills. I have a theory that engaging the high/low triggers pending code P0501. I think back to each time that code came on and it was always shortly after playing with the high/low. I noted recently on here that I'm unable to engage the CDL and that the linkage seems rough to shift for the high low. Recently I sprayed some DW40 lub all over the linkage. Helped free up the high low but not the CDL. Does my theory make any sense or do you think its purely a coincidence that the code has not been triggered lately despite me not using the high low shifter at all?


Also regarding that other pending code I had P1171. The big hose that connects the engine airbox to the engine was very lose and the airbox clamps were not secure.... dont know why but I tightened everything firmly and now I wait. I think that was the problem though.

 

This code, according to the manuals means that the slabs speed signal and the transmission speed signal that comes from the tcm don't match.





The tcm is under the drivers seat. Might check for corrosion or something? Slabs is under the glove box area. I'm not sure exactly where the transmission speed sensor is, but that is what the tcm uses for it's number.