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Old 8th December 2016, 09:24 PM
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steamship steamship is offline
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Join Date: Jun 2013
Location: Londonderry, Northern Ireland
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Quote:
Originally Posted by MikkiJayne View Post
When I fitted the replacement brake switch I got it in the perfectly wrong position (yes, there is such a thing!). It has two contacts - one normally open (for the brake lights), and one normally closed (for the ECUs). The ECUs expect to see both contacts change together so they know the switch is working. I'd managed to get it in just the wrong position so the normally open was open, but just enough pressure on it for the normally closed to also be open! The ECUs knew something was up so all got in a grump Wound the switch in another half turn and everything is fine now - no codes, and enough oomph from stationary to wake up the ESP I wish I'd figured this out before towing the FE home Steamship - that could well be your issue too?
Sounds like something I'll have to try. Question is, how did you test their open/close positions? Was it using VCDS, and if so, how, or just using a multimeter across the terminals?
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

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