Mk1 Cruise Control Add Up/down Buttons?

[Sylray]

Does anyone know if it is possible to add up/down buttons to the cruise control who now only has the on/of/res and set button

It would be nice to change the speed a little after setting it, and would be nice to change the now non used radio control on the steering wheel as a up/down control.

 

 

 

[SilverBeast]

Doesn't te end of the stalk with the on/off/res switch have a rocker on the end that increases and decreases the speed? Or is that just the MKII?

[gregers]

if it did i never saw it lol.

[Sylray]

don't think. the control with the switch and set button only controls the cruisecontrol on/of/preset the indicators, and the head light(bright one)

in the images attached you see the controls i have (the MK buttons on the right took me a week to be found, so yes i is possible that i have missed something else)

 

I have looked in the haynes manual to the electrical diagrams but it down not show anything of the cruise control.

 

I have to re read the dataport, but only stored the found devices partial, (and the cruise control is not in the list. but maybe someone recognizes these readings and know the type of CC in it

 

Address 03: ABS Brakes

   Protocol: KW1281

   Controller: 1J0 907 379 D

   Component: ABS     20 IE CAN  0001

   Coding: 12812

   Shop #: WSC 00020

 

Address 08: Auto HVAC

   Protocol: KW1281

   Controller: 7M0 907 040 AS

   Component: CLIMATRONIC MPV    V110

   Coding: 00014

   Shop #: WSC 00020

 

Address 09: Cent. Elect.

   Protocol: KW1281

   Controller: 7M0 962 258 F

   Component: Multifunkt.Einheit 0001

   Coding: 04097

   Shop #: WSC 00021

 

Address 15: Airbags

   Protocol: KW1281

   Controller: 1J0 909 603 AA

   Component: AIRBAG VW3 -        V04

   Coding: 16705

   Shop #: WSC 00000

 

Address 17: Instruments

   Protocol: KW1281

   Controller: 95V W10 849 95-

   Component: JG biinstrument     066a

   Coding: 00124

   Shop #: WSC 00021

 

 

Will do a new search for modules later to identify the CC

[viperclive]

Silverbeast is correct at the end of the stalk there is a rocket switch, when switched to cc to increase speed hold in the top of rocket switch, to lower speed hold in bottom of rocket switch.

[Sylray]

so the SET button on a switch? (sorry I am not native english (dutch)) and am not familiar with the term stalk and rocket switch)

I am going to look in the car now, to see if i can find what you are telling

[SilverBeast]

From the other answers (and your pictures)

 

MKI does NOT appear to have the rocker on the end of the stalk - my mistake

 

MKII has a rocker to increase/decrease speed under cruise control where your set switch is - I have a MKII and have never driven a MKI

[Sylray]

ok, then would be the question again, would it be possible to add them.

does anyone with a MK2 have vagcom and can tell what module is in there?

if that is the same, it must be possible. I only have to find out where to connect (and maybe update software of something)

[viperclive]

My mistake, haven't used mine for ages, just checked, if you hold set button in speed will increase only.

[Sylray]

Thanks viper, will test that tomorrow. So then only a step down/slower would be a nice extra

[viperclive]

It would but not sure you can do that with the vacuum system fitted, your lucky I can't get mine to operate, given up looking for relay.

[Sylray]

Hi viper,
is the vacuum part working at yours? (disconnect at pump and such ;-)

Does the pump work (power with 12 while removed from car.

Are your switches working (brake and clutch) the electrical part and the vacuum part of them.

Further it is electric so Les easy to test

[viperclive]

I have checked pipes and switched at pedals, had pump apart, cleaned and dried out, my next job is to jury rig power and pipe so as to have pump on seat next to me, this way I can check to see if it's working while my wife drives. If the pump runs then a loss of vacuum, I shall then connect pipe to connector at peddles, I will sort it in the end, I cannot find relay though, believed to be behind radio somewhere, I've looked bit can't find.

[Sylray]

ok, i have now found someone who made schematic of the cruise control module, and i can't find an easy solution to add the buttons. so I create a new project. I am going to get a Arduino. what is a 15 pound device. it has digital and analog in/out ports and has a serial bus.

the things to read out are, speed (easiest of to take the pulse from the original detector. or can even use a gps for that) brake, clutch, activate/deactivate button, up button, down button, and lets create some programmable memory buttons.

as out going signals I need to control the vacuum pump, notification lights when on/off .

I need to write the software for it, but that should be an easy job as the process is not that hard.

adding some relays as additional safety to prevent a software failure to increase speed after releasing the pedals.

 

more ideas to think of before i start?

(I expect this project not costing me more than 25-30 pound (using excising buttons there where possible)