Thread: Adaptive Cruise Control for D4?

RRS 2010 speed control.pdf
Pins 5 & 20 not used, pin 12 is grounded.

@ken well done on the detective work.

Will we have to splice into the CAN bus or is there a connector of some sort that can used?

There is a bracket for the ACC ECU that facilitates mounting:
Land Rover - Bracket - Genuine at www.rimmerbros.co.uk

Also I think this is the bracket you were referring to for the radar unit:
Range Rover Sport 2010 Autobiography Acc Radar Front Bumper Mounting Bracket | eBay
BRACKET at www.rimmerbros.co.uk

I think this will fit in the D4 as I am pretty sure the mounting points are there. I am thinking of getting these rather than trying to cobble something together. As you say though, looking it does give a good idea of where to locate the radar unit - dead centre behind the grill.

Both of these brackets are available from a few different places and not too pricey.

@Graeme thanks for the wiring diagram - very helpful.

Hi Sean,

Did you get your steering wheel switch? I've tried to order it from Rimmers too but they tell me that LR want a full chassis number and photo's of existing switch.

Could it be that they are trying to stop people doing this mod?

Ken

G'day Ken, I haven't had any issue at all thus far. It is still on back order with LR and they are expecting it to be delivered to them 28th Jan. They gave me this info after I enquired via email on Monday as to expected delivery date.

On placement of the radar unit, the photos on the powerfuluk.co.uk site show exactly where the radar sits on RRS 2010 models on. It is actually placed behind the bumper and not in the position BBSSPY had it when testing his set up. There is no room to put there on the D4 anyway due to the additional radiator cores. Here's the link showing the radar mounted with out the bumber on:
Range Rover Sport 2010 ACC Radar Mounting Bracket (rimmer is a lot cheaper for this part)

I'll be interested to see if the D4 has the mounting points for the bracket.

Also, I mentioned earlier that the ECU may go behind the battery. From further reading it seems more likely, and logical, that it is fitted in the cabin on the passenger side some where - the images on the catalogue are a little misleading. Is that where you were looking for a place to install it?

I have also been trying to identify the plugs used in the radar and ECU as I am not too keen on soldering wires directly on to the pins. The maker of the socket on the ECU is Tyco. I am trying to see if I can find anything to match. What are you planning to do for this?

Sean, I just got an email today saying the part number has changed and they need to replace the switches in pairs, and to do so they will need The VIN and photo's of existing.

I'm not sure where to place the ecu yet, I think the HS CAN bus also goes to the Transfer case ECU in second battery box, I've still got a sliver of room in there, and it's easier than working upside down behind the dash. Other than that maybe behind the center part of the dash where the Hids4u gif interface device fits?

As for the connectors to the Radar, I've not received mine yet, but I'm hoping it's the same size pins as the ECU? In which case a old PC will have ample connectors floating about in it that you use.

Ken

Originally Posted by kenl

Sean, I just got an email today saying the part number has changed and they need to replace the switches in pairs, and to do so they will need The VIN and photo's of existing.

I'm not sure where to place the ecu yet, I think the HS CAN bus also goes to the Transfer case ECU in second battery box, I've still got a sliver of room in there, and it's easier than working upside down behind the dash. Other than that maybe behind the center part of the dash where the Hids4u gif interface device fits?

As for the connectors to the Radar, I've not received mine yet, but I'm hoping it's the same size pins as the ECU? In which case a old PC will have ample connectors floating about in it that you use.

Ken

Hmmm, I just just checked my email again and have not received any message to that effect. You may need to look else where - there are many places that list the part. Famous Four have it listed for a few pounds less than Rimmer. If desperate and as a last resort, I am sure the Russians would sell you one - just make sure you use paypal! (or maybe Pete (sneigy) could help?)

I don't think I would be placing the ECU outside of the cabin. Looking at it, it does not seem to be water tight with slits in the casing near the connector.

The pins in the radars connector are larger than the ECU. Also, the ECU connector is keyed so not sure about the PC cables doing the job.

Photos of both connectors:

Radar:


ECU:


If anyone has any suggestions on where to source matching plugs it would be greatly appreciated.

Ken, did you manage to source a the new new cruise control switch pack?

Looks like Colin has been doing a little bit of work on this over on Disco3.co.uk - he has updated some info regarding the pin outs on the ECU. Seems to match up with the Schematic Graeme supplied.

Hey Sean, I've managed to order one, but it wasn't easy, I ended up sourcing one from Wiggs on the disco3 site. Everywhere else insisted on selling a pair of switches and needed VIN# to confirm which pair you would need, Obviously that's not gonna work on a car that doesn't have ACC as an option to start with.

Wiggs reckons it is to do with the trim on the buttons and surround, chrome bits, shiny black, flat black etc. so they now want to sell pairs to avoid mismatched switched... Makes sense I guess

I've been getting more info on the Disco3 site as Colin (the Guru) from BBS frequents that more than here. So I will post my progress there for all that are interested.

I'm up to having the Ecu fitted and the radar fitted, i've tried to enable via the MSV2 in the CCF but no joy yet............................. I'm hoping it is because the steering wheel switch is not yet fitted.

ON the bright side, the ACC ECU is being recognized by the car.