Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 9th May 2014, 10:49   #11
Union Wheels
Loves to post
 
Honda Accord Tourer i dtec

Join Date: Jul 2011
Location: Wakefield
Posts: 331
Thanks: 56
Thanked 90 Times in 75 Posts
Default Clutch switch

Hi andre,

I too was in this position with regard to the switches when I did my retrofit.

When I examined plug C0331 on the ECU I noted that pin 23 "E" green/red, pin 28 "F" purple/green and pin 24 "G" green/purple were all present, I therefore concluded that the switches were in place.

The reasoning being that pin 27 wire was missing and so was the cruise control interface.
The steering wheel switches were missing and so were the 2 wires in C20082 pins 4 & 5
So if the wires were there so were the switches

Your picture of the clutch switch shows wires light green/purple, green/red and black which is another clue to the switch being present

In the end I connected everything up and tried it, and it worked.

Pete.
__________________
[SIGPIC][/SIGPIC]

How to Retrofit Diesel Cruise Control + Loom
http://www.the75andztclub.co.uk/foru...87&postcount=1

How to Modify a 3 Speed Fan for CDT & V6 into a 2 Speed with a Resistor.
http://www.the75andztclub.co.uk/foru...d.php?t=209920

CDT now gone to new owner, but still on forum
Union Wheels is offline   Reply With Quote
Old 9th May 2014, 14:16   #12
andre372
Gets stuck in
 
andre372's Avatar
 
2001 Rover 75 Tourer 2.0 CDT manual Royal Blue (JFM)

Join Date: Dec 2012
Location: Viljandi, Estonia
Posts: 855
Thanks: 233
Thanked 98 Times in 87 Posts
Default

Quote:
Originally Posted by Union Wheels View Post
Hi andre,

I too was in this position with regard to the switches when I did my retrofit.

When I examined plug C0331 on the ECU I noted that pin 23 "E" green/red, pin 28 "F" purple/green and pin 24 "G" green/purple were all present, I therefore concluded that the switches were in place.

The reasoning being that pin 27 wire was missing and so was the cruise control interface.
The steering wheel switches were missing and so were the 2 wires in C20082 pins 4 & 5
So if the wires were there so were the switches

Your picture of the clutch switch shows wires light green/purple, green/red and black which is another clue to the switch being present

In the end I connected everything up and tried it, and it worked.

Pete.
Hi Pete, thanks for the reply. I guess I'll find out about the ECU wiring when I get to adding the missing pin. I'm pretty sure they're there.
Looking at Rimmers' diagrams there shouldn't be any doubt about the clutch switch. But there it is shown as black, mine is white. .
Final conclusions can be made after I've bought and fitted a kit. But that might be in half a year or so.

Today I went and bought everything I need for doing the wiring. Plenty of black cable (PVC, 0,75 sq mm, I'm not really happy with it but couldn't find any better), some 3M branded bits for doing the "piggyback" thingy, self-vulcanizing isolation tape for packing in the 3M bits, some textile isolation tape for making a neat loom, and some 3/1 mm heat shrinking sleeve with glue for the to be soldered connections. I hope it shrinks enough to hold onto the original 0,5 sq mm wires.

By the way, the cruise interface plug in my picture is from a petrol car. I now have one from diesel also, so I'd have the correct colours and wouldn't need to move the connectors in the plug.
andre372 is offline   Reply With Quote
Old 10th May 2014, 18:18   #13
andre372
Gets stuck in
 
andre372's Avatar
 
2001 Rover 75 Tourer 2.0 CDT manual Royal Blue (JFM)

Join Date: Dec 2012
Location: Viljandi, Estonia
Posts: 855
Thanks: 233
Thanked 98 Times in 87 Posts
Default

Almost there


Last edited by andre372; 10th May 2014 at 22:20..
andre372 is offline   Reply With Quote
Old 16th May 2014, 21:14   #14
andre372
Gets stuck in
 
andre372's Avatar
 
2001 Rover 75 Tourer 2.0 CDT manual Royal Blue (JFM)

Join Date: Dec 2012
Location: Viljandi, Estonia
Posts: 855
Thanks: 233
Thanked 98 Times in 87 Posts
Default

All wiring done, only need the steering wheel buttons now and everything should work









Attached Images
File Type: jpg 2014-05-16 14.32.24.jpg (120.6 KB, 286 views)
File Type: jpg 2014-05-16 14.40.39.jpg (113.7 KB, 283 views)
File Type: jpg 2014-05-16 17.12.40.jpg (109.0 KB, 376 views)
File Type: jpg 2014-05-16 17.13.01.jpg (67.9 KB, 281 views)
File Type: jpg 2014-05-16 17.27.32.jpg (84.7 KB, 280 views)

Last edited by Dragrad; 16th May 2014 at 21:48.. Reason: Thumbnails enlarged
andre372 is offline   Reply With Quote
Old 17th May 2014, 21:32   #15
andre372
Gets stuck in
 
andre372's Avatar
 
2001 Rover 75 Tourer 2.0 CDT manual Royal Blue (JFM)

Join Date: Dec 2012
Location: Viljandi, Estonia
Posts: 855
Thanks: 233
Thanked 98 Times in 87 Posts
Default

I've put the dash together again with all the wiring in place and a hole for the steering wheel buttons made.
The only thing I'm concerned about, both the cruise control master switch and the heated seat switch have slightly more dimmed backlighting than the ATC and stereo panel. I've yet to check the voltage but perhaps this is normal?

When I finally get it to work, I will amend Pete's excellent how-to with some pictures and explanations for future enthusiasts.







Attached Images
File Type: jpg 2014-05-17 23.30.02-2.jpg (92.6 KB, 344 views)
File Type: jpg 2014-05-17 23.30.46.jpg (90.4 KB, 428 views)

Last edited by Dragrad; 17th May 2014 at 23:47.. Reason: Thumbnails enlarged
andre372 is offline   Reply With Quote
Old 28th May 2014, 19:51   #16
andre372
Gets stuck in
 
andre372's Avatar
 
2001 Rover 75 Tourer 2.0 CDT manual Royal Blue (JFM)

Join Date: Dec 2012
Location: Viljandi, Estonia
Posts: 855
Thanks: 233
Thanked 98 Times in 87 Posts
Default

Whoohoo! A working cruise control!
Thanks to Andy (trikey) and Stu (Stubie) I now have the cruise switches fitted
And the first test drive done.









Attached Images
File Type: jpg 2014-05-28 21.23.46.jpg (77.0 KB, 303 views)
File Type: jpg 2014-05-28 21.26.02.jpg (130.1 KB, 301 views)
File Type: jpg 2014-05-28 22.14.10.jpg (100.1 KB, 303 views)

Last edited by Dragrad; 15th June 2014 at 21:23.. Reason: thumbnails enlarged
andre372 is offline   Reply With Quote
Old 29th May 2014, 22:59   #17
andre372
Gets stuck in
 
andre372's Avatar
 
2001 Rover 75 Tourer 2.0 CDT manual Royal Blue (JFM)

Join Date: Dec 2012
Location: Viljandi, Estonia
Posts: 855
Thanks: 233
Thanked 98 Times in 87 Posts
Default

Second test drive done today (in town).

I didn't expect it to work that way without a T4 session.
I found a thread by bigruss42 on mg-rover.org where he describes his retrofitted cruise control funcionality prior to having the car T4'd:

Quote:
Originally Posted by bigruss42
Cruise can be enabled at 29mph.
Press master switch - no warning light on dash.
Press Res.- warning light comes on.
Press Set - Cruise set at current speed.
Repeatedly press Set - incremently increases cruise speed.
Press and hold Set - increases cruise speed until released.
Use accelerator for less than 30 secs - cruise resumes at previous speed.
Brake and clutch switches work as they should - suspends cruise.
Press Res.- suspends cruise.
Press Set - cruise resumes at current speed
Press RES. twice - cancels cruise, light goes out, can then only be reset by the master switch.
My cruise control works in a different way:

Cruise can be enabled at ~38 km/h (my speedometer over reads by ca 12% so it's actually ~34 km/h or ~21 mph).
Press master switch - no warning light on dash.
Press Set - warning light comes on, cruise set at current speed.
Repeatedly press Set - incrementally increases cruise speed.
Press and hold Set - increases cruise speed until released.
Use accelerator for less than 30 secs - cruise resumes at previous speed. (haven't tried actually)
Brake and clutch switches work as they should - suspends cruise.
Press Res. - warning light goes off, suspends cruise.
Press Res. again - warning light comes on, resumes cruise at previous speed.
etc

Can't say I'm not happy
Only one thing missing from perfect, there should be a "-" button for decreasing speed. Why did they even put the dummy middle button in there? Just so it would be symmetrical with the ICE buttons?
andre372 is offline   Reply With Quote
Old 30th May 2014, 09:14   #18
Mike Noc
This is my second home
 
Mike Noc's Avatar
 
Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4.

Join Date: Jul 2009
Location: Hampshire
Posts: 11,531
Thanks: 3,470
Thanked 3,119 Times in 2,247 Posts
Default

You don't need a minus button - just tap the RESUME button, then tap the SET when you get to the lower speed.

Last edited by Mike Noc; 30th May 2014 at 09:47..
Mike Noc is offline   Reply With Quote
Old 30th May 2014, 11:56   #19
andre372
Gets stuck in
 
andre372's Avatar
 
2001 Rover 75 Tourer 2.0 CDT manual Royal Blue (JFM)

Join Date: Dec 2012
Location: Viljandi, Estonia
Posts: 855
Thanks: 233
Thanked 98 Times in 87 Posts
Default

Quote:
Originally Posted by Mike Noc View Post
You don't need a minus button - just tap the RESUME button, then tap the SET when you get to the lower speed.
Correct But that's 2 clicks instead of 1 and no "fine tuning". Plus there is a dummy button with no use.
andre372 is offline   Reply With Quote
Old 13th June 2014, 11:01   #20
Rob Bell
Gets stuck in
 
ZT-T CDTi +

Join Date: Nov 2006
Location: London
Posts: 561
Thanks: 7
Thanked 10 Times in 7 Posts
Default

Fantastic work sirs! I've parked this idea for years with an idea to make my own loom, but never actually doing it!!! It is SO reassuring that it is possible!

Has anyone got a copy of those two pages of the wiring diagram (I'm not sure I have it) - and I'll try and put together a pictorial how-to to complement this thread (or has it been done already?)

Thanks again!!!
Rob Bell is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 13:35.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd