Thread: Speedo Correction Clashing with ACE

Is it wired to the speed output wire from the SLABS computer? This is where it should be.

Hi Slunnie, I wired to the pink/green wire from/to the slabs computer as detailed in posts by others. I paid particular attention to make sure the brown wire from the unit went to the slabs and the blue wire from the unit joined to the harness end.

The speedo was corrected when I had the C6100-4 hooked up, so I would have to say that if I had not wired it correctly then the speedo may not have worked at all?

I am keen to know if anyone else with a vehicle with ACE has this speedo correction unit fitted, and if so do they have any noticeable problems. Maybe I need to tap into a different point in the system.

One thing I have noticed is that all of my plugs into my slabs computer are the same colour, but on the post by another member on this forum I see they had different coloured plugs, could be that my d2 is the early one and his was the update model?

I have been looking at the Rave electrical drawings trying to find the speed sensor and where it connects but have not had any luck yet. Just trying to make sure there is no difference to the way the d2A is wired compared to the earlier model.

Cheers
Mikey

Originally Posted by Mikey

I am keen to know if anyone else with a vehicle with ACE has this speedo correction unit fitted, and if so do they have any noticeable problems. Maybe I need to tap into a different point in the system.



Cheers
Mikey

Hi, where exactly did you splice in with the input to your device? right near the SLABS ECU? , if yes maybe you better try after the header which splits the signal to the ACE ECU at C0067 pin 6(pink /green wire) which is easy reachable as well

It shouldn't be the ACE but rather the SLS that affects the height. ACE is effected by speed signal but only as an on/off function for sensing "off road conditions" (slower speeds) and allow more articulation.

Graeme on here makes a unit to interrupt the ACE signal and modify the signal/action of the ACE system. He may be able to shed some light on anything going on. But I'd be looking more at SLS. It too is affected by road speed, more so than ACE.

The only way that I can think of for ACE to affect height on 1 side would be if the bars were pushing as though leaning through a corner. However for this to occur ACE would have to be getting a speed signal indicating that the vehicle was indeed moving and the accelerometers would have to think the vehicle was cornering. Hence I suspect that ACE is not the cause, rather SLS as already suggested is in some way being affected.

Is the correction device mounted near SLABS?

Hi guys, thanks for the replies.

As a matter of fact, I already have the device you mention Clubagreenie and I purchased from Graeme but as yet have not installed it .

The reason I suspected ACE was the very sudden movement/drop that I am experiencing. I did not think the SLS could drop that fast and recover just as fast.

I am thinking that the signal to ACE is getting messed up somehow by the frequency output of the ratio interface, but then again if the speedo works as it should with the ratio interface connected, that suggests that it is getting the right frequency/signal, doesn't it?

I may have to do some tests by getting another to drive the d2 a short distance then stop while I walk along side and see if I can actually identify the system that is actuating. Might even strap the GoPro underneath .

Sierrafery, I have been looking at rave trying to find where header C0067 is but as yet have not found it. Could you give me a hint please?

I really am wondering if someone else that has ACE and one of these ratio controllers could let me know if they have had any issues.

Cheers, thanks for all the advice. I will do some investigation the weekend.

Mikey

if you have the complete RAVE(i know there are more variants) but in mine is in Electrical library - Comnnector views -scroll through all untill 0067 or 0229 which is the female side of it, or you better go to instrument pack's plug C0230 pin 16 cos from C0067 it splices to the aircon ECU so to avoid any interferece with this too(i can't tell you if it disturbes it or not).... to make sure i'll attach you pics.

as a matter of fact i dont know how that particular C6100-4 device is working bot those i saw were connected serial in the speedometer's input circuit after any other system on that "line" so if yours is the same type IMO your presumption with ACE is right if you connected it near the SLABS ECU cos from there(C0504 -3) the road speed signal goes to header C0290 -19 from where it splices to ACE ECU, radio amplifier,cruise controll, aircon ECU, ECM and instrument pack

IMO as long as it's a serial connection it can't affect the SLS cos the road speed signal used by the SLS is processed within the SLABS ECU as it manages both systems.

As yours is an auto it should be connected to the SLABS wiring as shown in Slunnies post here www.slunnie.com :: View topic - Truespeed speedo correction installation

You would only connect to the instrument pack if you had a manual and still wanted cruise control to work. But if the C6100-4 works slightly differently to the Truspeed connecting to the instrument pack may be the solution for you. But AFAIK others with ACE have their C6100 connected as per Slunnies post.

I have a manual (Without ACE or SLS) so can't comment on your rocking issue.