Topic: Cruise Control (Read 2145 times)

johnnycboy · « **on:** 04 March 2009, 18:14:01 »

Sorry lads/lasses

Have searched but unable to come to a conclusion. On the 2.5 cd I have it's got all the bits and pieces in place (switch, actuator blah blah), but the Basteward thing don't work. I have checked the basics such as fuses, can't seem to locate K14 though (I am assuming this is for DBW only or am I mistaken). Anyway any help would be appreciated as I know you guys will.
Perhaps one day I may be able to give a little more back. But I'm still learning from you guys/girls.

Thanks

Marks DTM Calib · « **Reply #1 on:** 05 March 2009, 08:20:17 »

Easiest diag method is to tech2 it!

I assume the brake switch is the correct type (4 pin) and the clutch switch is fitted (if appropriate)?

johnnycboy · « **Reply #2 on:** 05 March 2009, 09:05:08 »

Quote

Easiest diag method is to tech2 it!

I assume the brake switch is the correct type (4 pin) and the clutch switch is fitted (if appropriate)?

This I will check today - I'l post up later to confirm. Clutch switch is that fitted for manual only. Mines the 2.5 auto.

Cheers Mark

Marks DTM Calib · « **Reply #3 on:** 05 March 2009, 09:12:24 »

Yes, manual only.

Often the standard brake switch is just 2 wire and needs changing (you can short the 2 cruise wires out to prove this and as a workround)

johnnycboy · « **Reply #4 on:** 05 March 2009, 10:27:26 »

Quote

Yes, manual only.

Often the standard brake switch is just 2 wire and needs changing (you can short the 2 cruise wires out to prove this and as a workround)

Have checked brake switch, you were spot on Mark - standard 2 pin. Have jumpered this for now

. If this is not changed what would be the consequences/implications in the future :exclamation. The cruise function works as it should, releases when brake pedal pushed

. Obviously there is a reason for 4 pins just wondered what the 2 pins do which have been jumpered.

Cheers

Marks DTM Calib · « **Reply #5 on:** 05 March 2009, 10:51:55 »

There is no great reason for the extra pins on an auto as the autobox detects the brake being pressed by the existing brake lights setup and disables the cruise itself......different on a manual though!

johnnycboy · « **Reply #6 on:** 05 March 2009, 11:07:46 »

Much appreciated Mark. Think I will leave it as it is then 8-).

dad1uk · « **Reply #7 on:** 05 March 2009, 21:01:56 »

I've just fitted cruise control, and wouldn't recomend not putting the correct switch on the brake pedal. It means if you hit the brakes in an emergency, the cruise control would NOT disengage.

To be honest, it wouldn't cost that much to buy a 4 pole switch.

Jimbob · « **Reply #8 on:** 05 March 2009, 21:36:30 »

Quote

I've just fitted cruise control, and wouldn't recomend not putting the correct switch on the brake pedal. It means if you hit the brakes in an emergency, the cruise control would NOT disengage.

To be honest, it wouldn't cost that much to buy a 4 pole switch.

It WILL disengage on an auto

johnnycboy · « **Reply #9 on:** 05 March 2009, 21:49:13 »

Quote

Quote
I've just fitted cruise control, and wouldn't recomend not putting the correct switch on the brake pedal. It means if you hit the brakes in an emergency, the cruise control would NOT disengage.

To be honest, it wouldn't cost that much to buy a 4 pole switch.

It WILL disengage on an auto

It certainly does disengage, tried and tested

Marks DTM Calib · « **Reply #10 on:** 06 March 2009, 08:25:31 »

Quote

I've just fitted cruise control, and wouldn't recomend not putting the correct switch on the brake pedal. It means if you hit the brakes in an emergency, the cruise control would NOT disengage.

To be honest, it wouldn't cost that much to buy a 4 pole switch.

Yep, on an auto the auto box ECU can also disengage cruise control.

And the auto ECU also looks for the pressing of the brake pedal via the standard brake lights contact (as used on all cars anyway).

The Auto ECU, when seeing the brake pedal pressed, signals to the cruise off via its own input.

So, its only really essential for manuals!

Beware though as it would appear that if you bugger with the brake switch and get it wrong then you can lock the brakes on (cant you Jimbob!) and that results in all sorts of screaching and grief

Jimbob · « **Reply #11 on:** 06 March 2009, 08:35:13 »

Quote

Quote
I've just fitted cruise control, and wouldn't recomend not putting the correct switch on the brake pedal. It means if you hit the brakes in an emergency, the cruise control would NOT disengage.

To be honest, it wouldn't cost that much to buy a 4 pole switch.

Yep, on an auto the auto box ECU can also disengage cruise control.

And the auto ECU also looks for the pressing of the brake pedal via the standard brake lights contact (as used on all cars anyway).

The Auto ECU, when seeing the brake pedal pressed, signals to the cruise off via its own input.

So, its only really essential for manuals!

Beware though as it would appear that if you bugger with the brake switch and get it wrong then you can lock the brakes on (cant you Jimbob!) and that results in all sorts of screaching and grief

Yes, but not from the car for some reason

Jimbob · « **Reply #12 on:** 06 March 2009, 08:41:00 »

Should add the bugger still doesnt work though....

Actuator all fitted and wired in.
Clutch Switch Added
4 pin brake switch added
Stalk replaced

Cruise ECU responds and reports no faults.

Can't get any live data out of it yet though (yet

)

Any other normal points of issue?

vauxfan2k · « **Reply #13 on:** 06 March 2009, 13:27:19 »

cruise only works from 30mph + and if you have your foot resting on the clutch or bake pedal at all it will open the circuit for the pedal switch.

Try shorting out the connector for the clutch pedal with a paper clip to see if that makes any difference.

TheBoy · « **Reply #14 on:** 06 March 2009, 13:31:50 »

Quote

Should add the bugger still doesnt work though....

Actuator all fitted and wired in.
Clutch Switch Added
4 pin brake switch added
Stalk replaced

Cruise ECU responds and reports no faults.

Can't get any live data out of it yet though (yet )

Any other normal points of issue?

Bugger, you asked me to check Live Data as well. I'll do that later when I go out to car

Jimbob · « **Reply #15 on:** 06 March 2009, 13:41:13 »

Quote

Quote
Should add the bugger still doesnt work though....

Actuator all fitted and wired in.
Clutch Switch Added
4 pin brake switch added
Stalk replaced

Cruise ECU responds and reports no faults.

Can't get any live data out of it yet though (yet )

Any other normal points of issue?
Bugger, you asked me to check Live Data as well. I'll do that later when I go out to car

No worries, Mark has confirmed there IS live data to be had....I just can't currently access it.

TheBoy · « **Reply #16 on:** 06 March 2009, 14:09:51 »

Quote

Quote
Quote
Should add the bugger still doesnt work though....

Actuator all fitted and wired in.
Clutch Switch Added
4 pin brake switch added
Stalk replaced

Cruise ECU responds and reports no faults.

Can't get any live data out of it yet though (yet )

Any other normal points of issue?
Bugger, you asked me to check Live Data as well. I'll do that later when I go out to car

No worries, Mark has confirmed there IS live data to be had....I just can't currently access it.

OK, no worries

TheBoy · « **Reply #17 on:** 06 March 2009, 14:10:31 »

Are you able to conntact to it, as 1997 and 1998 cruise units are different (from a diag point of view)?

Jimbob · « **Reply #18 on:** 06 March 2009, 14:12:26 »

Yes, it does respond with no fault codes.

Does the ECU ident give a clue to its age? alledgedly a 98, but some of the ecu data looks to reference 96.

I may swap the units around as a test.

Will also see if I can get live data off mine, not tried yet.

LJay · « **Reply #19 on:** 06 March 2009, 17:22:09 »

Quote

Quote
Quote
I've just fitted cruise control, and wouldn't recomend not putting the correct switch on the brake pedal. It means if you hit the brakes in an emergency, the cruise control would NOT disengage.

To be honest, it wouldn't cost that much to buy a 4 pole switch.

Yep, on an auto the auto box ECU can also disengage cruise control.

And the auto ECU also looks for the pressing of the brake pedal via the standard brake lights contact (as used on all cars anyway).

The Auto ECU, when seeing the brake pedal pressed, signals to the cruise off via its own input.

So, its only really essential for manuals!

Beware though as it would appear that if you bugger with the brake switch and get it wrong then you can lock the brakes on (cant you Jimbob!) and that results in all sorts of screaching and grief

Yes, but not from the car for some reason

No screaching (from me or the car) The rather thing just wouldn't move!
Can confirm a certain amount of grief though!

Jimbob · « **Reply #20 on:** 06 March 2009, 17:47:33 »

Anyone got any tips for getting rid of a black eye?

TheBoy · « **Reply #21 on:** 06 March 2009, 18:36:28 »

Quote

Anyone got any tips for getting rid of a black eye?

Click your fingers, saying "Tea, now, bitch!", and within minutes your whole face will be the same colour....

News:

Author Topic: Cruise Control (Read 2145 times)