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AndrewMac85

Shift Button Not working

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Hi All,

 

Since my steering wheel refurb, the down shift button has stopped working in sport mode. I took the airbag off and validated the connections and it looks good. Is there a good way to test these buttons? Should I measure the resistance with a multimeter? Does anyone know if this switches to ground or 12V?

 

Cheers,

 

Andy

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If you're absolutely sure the button is working electrically then the next thing to check is the connections past the slipring on the steering column.

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I had one of the solder joints go on one of the buttons on my E34 Switchtronic wheel. I found a replacement wheel but meanwhile managed to fix the original by making a small cut through the leather on the rear of the wheel to get at the button, extracted the button, re-soldered the contact, stuck it all back in then covered the area with a small black suede patch attached by superglue. 

 

I would advise disconnecting the battery, remove the steering wheel airbag, remove the steering wheel - unplugging it from the slip-ring, then electrically line check through both buttons to establish if the buttons are ok. If they are ok then the problem lies with the wiring through the slip-ring so check that. If they're not ok then you have to try and get at the affected button...

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