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Author Topic: reading the wire diagrams in haynes  (Read 1962 times)

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bogit

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reading the wire diagrams in haynes
« on: 08 March 2007, 08:06:58 »
anyone any good at deciphering them,or it could be 3 oclock in the morning was not a good time to try :)

im fitting cruise to my minifacelift mv6,stolen form my old m reg elite.
its not working yet ::)
looked at the haynes din wire diagram , noticed the early and late are wired difrently. does this mean i need a new cc module from a later omega, or will fitting a new 4 way brake light switch sort it all out for me.(the switch in the mv6 has 2 terminals,with a 4 way socket .)
the brake light in the old elite also only had 2 terminals.
ill check its plug later.not sure if 2 or 4 way .....

edit.... the old elite has only 2 wires going to the brake light switch, mv6 defo has 4  :o
« Last Edit: 08 March 2007, 08:37:47 by bogit »
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jonathanh

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Re: reading the wire diagrams in haynes
« Reply #1 on: 08 March 2007, 09:19:14 »
I think you need a 4 way brake switch here.  As a temporary bodge, try bridging out the two unused terminals on the 4 way brake switch socket (paperclip should do the trick).  with a bit of luck the cruise should work

For what it's worth  I don't think the Haynes diagram is quite right on the cruise wiring anyway.  i've got a late '99 reflection and I don't think my wiring agrees with the diagram

If you still can't get it to work, I'll dig around for an old post where I read the pin readouts from the cruise multiplug - that way you can check your wiring etc
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Bo Bo

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Re: reading the wire diagrams in haynes
« Reply #2 on: 08 March 2007, 09:30:04 »
Does this help?
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bogit

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Re: reading the wire diagrams in haynes
« Reply #3 on: 08 March 2007, 10:44:59 »
Quote
Does this help?


it did. read it many times  ;D
even made up my nice cruise control module / elecy water pump mount as per the pics.
was confused as old car had 2 terminal switch, i know the post says you need a 4 pin switch,put the picture "looks"like a 2 terminal one  ;D
thats why i asked if i need a 4 way switch or a new module/rewire ..
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hotel21

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Re: reading the wire diagrams in haynes
« Reply #4 on: 08 March 2007, 10:48:02 »
The two pics taken on the desk are the 2 pin switch.  The one where the switch is located in the car is the 4 pin one.  

I didn't think to take a picture before fitting and did not have the time to take it bacl out again for a piccy after it was fitted!

B
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bogit

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Re: reading the wire diagrams in haynes
« Reply #5 on: 08 March 2007, 10:50:29 »
yup , just came in to correct my self and blam..................................... :-[give us a chance.  ;D
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bogit

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Re: reading the wire diagrams in haynes
« Reply #6 on: 08 March 2007, 11:05:02 »
Quote
I think you need a 4 way brake switch here.  As a temporary bodge, try bridging out the two unused terminals on the 4 way brake switch socket (paperclip should do the trick).  with a bit of luck the cruise should work
For what it's worth  I don't think the Haynes diagram is quite right on the cruise wiring anyway.  i've got a late '99 reflection and I don't think my wiring agrees with the diagram



woot !!
paper clip dodge worked. round to the stealers on my next day off then :)
thank you all :)


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hotel21

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Re: reading the wire diagrams in haynes
« Reply #7 on: 08 March 2007, 17:52:15 »
 :y  :y
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MBConfuse

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Re: reading the wire diagrams in haynes
« Reply #8 on: 20 March 2007, 12:57:48 »
Hi guys,

I've just installed cruise control in to my '98 MV6, and was most pleased to find that your paper clip trick worked for me too!  Do you know what the two terminals which i have shorted out are meant to do?  Is it a switch fail safe or something?

Cheers,
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Kevin Wood

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Re: reading the wire diagrams in haynes
« Reply #9 on: 20 March 2007, 14:45:54 »
Quote
Is it a switch fail safe or something?

It's to disengage the cruise control when you press the brake pedal so it's probably best to ensure it is fitted exactly as specified by Vauxhall.

It probably works when shorted with a paperclip because another subsystem (ABS / Gearbox?) takes a brake light signal input and generates a signal to disable cruise control. If that subsystem were itself to fail there may be a situation where the cruise control stays active with the brake pedal pressed, which would be bad, and interesting to an insurance assessor if they ever poked around that closely.

Kevin



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Hillper

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Re: reading the wire diagrams in haynes
« Reply #10 on: 20 March 2007, 14:50:12 »
Agreed, do not leave it bodged!
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Mods.  'Hillper boot release'.  Dimming mirror.  Cruise control. Rear parking sensors.  Becker/Rockford Fosgate/Infinity/Alpine audio.

jonathanh

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Re: reading the wire diagrams in haynes
« Reply #11 on: 20 March 2007, 15:35:13 »
when I did a pin test on my wiring I found that the cruise module monitors the normal brake light switch plus the other two terminals that are only for the cruise unit.  My guess is that having two circuits here is a failsafe because if the usual brake light circuit fails it would fail 'unsafe' because it would not disengage the cruise.

I'd only suggest the paperclip as a temporary test measure - fitting a 4 way switch is pretty easy
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Kevin Wood

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Re: reading the wire diagrams in haynes
« Reply #12 on: 20 March 2007, 15:44:31 »
I imagine it is a failsafe in that if the fuse for the brake lights were to fail, or that set of switch contacts were to fail, the cruise would still be disabled.

I recall TheBoy postulating that this switch is effectively the same as the clutch switch on a manual. Of course, if the brake pedal failed to cut the cruise control in a manual, the driver's next action would be to hit the clutch, so the redundancy is inherent in that system. With the auto, I guess they decided to apply that extra redundancy to the brake pedal in the absence of a clutch.

Kevin
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MBConfuse

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Re: reading the wire diagrams in haynes
« Reply #13 on: 20 March 2007, 16:33:49 »
Alrighty, a new 4 way it is then!  Thanks for the advice.
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