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Cruise control wont turn off when braking! 

 

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 Post subject: Cruise control wont turn off when braking!
Posted: Mon Feb 20, 2012 11:52 pm 
Parts Gopher
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WA, Australia

My cruise control wont turn off when I apply the brakes, I either have to press really hard on the pedal, wait a second then it turns off, or the res/coast button. Anyone had this problem? I am worried that if someone else drive my car they wont realise this.
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 Post subject: Re: Cruise control wont turn off when braking!
Posted: Tue Feb 21, 2012 12:16 am 
Getting Side Ways
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Sounds like the brake light switch is not working, but the presure switch in your brake booster is still working as the backup it is.

Check to see if your brake lights are working. If they arent, theres a good chance its the switch at the top of the brake pedal

Nigel
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 Post subject: Re: Cruise control wont turn off when braking!
Posted: Tue Feb 21, 2012 12:45 am 
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As with Nigel... Has to be the brake light switch... When you jump on the pedal hard the back up switch in the master cylinder cancels it... A soft press cancels it by use of the forever failing brake light switch in the EF/EL...

This problem was rectified in the AU cruise as the AU cruise physically wont set if there is no load sensed... Somehow they've made it detect the lamps and if the switch doesn't work then then it wont set... Where the EF/EL wont cancel when the switch fails...

Had an issue when I put cruise into my old man's car (ED)... The EF/EL cruise was easier to install... Because the ED uses a separate cruise cancel switch the lamp load wasn't visible and the AU cruise module wouldn't work... Put an EF module in there and it worked first time...

Cheers,
Tim

 

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 Post subject: Re: Cruise control wont turn off when braking!
Posted: Tue Feb 21, 2012 4:21 am 
Parts Gopher
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WA, Australia

brake lights are working, it crossed my mind that it could be the switch, but they are working.
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 Post subject: Re: Cruise control wont turn off when braking!
Posted: Tue Feb 21, 2012 6:42 am 
Technical Contributor
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NSW, Australia

one lamp isn't blown? The wrong wattage/type of globes haven't been fitted? Ie: someone hasn't tried to jam a single filament bulb in for a stop/tail combination?

 

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93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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 Post subject: Re: Cruise control wont turn off when braking!
Posted: Tue Feb 21, 2012 8:28 am 
Getting Side Ways
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no timmy is right is the brake light switch, its about to fail and not turning off cruise is one of its first signs of dying. same thing happened to me, then not long after brake switch died completely, put in a new one and i bet the problem goes away

 

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 Post subject: Re: Cruise control wont turn off when braking!
Posted: Wed May 02, 2012 5:14 pm 
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I had the same problem. Couldn't figure out why the cruise control was so clunky to turn off. When I found out that the brake light switch often caused this, I checked and sure enough I had no brake lights. Had been driving around in heavy traffic every day for at least six weeks, and not one toot!
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