986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Immobilizer (theft control unit) replacement question

thstone · 08-19-2016, 08:01 PM

The DME, transponder (the little "pill" inside the key fob), and immobilizer all have to be programmed as a set. If you replace any single component of the set, then that component has to be re-programmed to work with the other two components.

It is often easier and cheaper to buy a replacement set of all three components and swap them all at one time.

You will also have to swap the key shank from the "old" fob to the "new" fob so the "new" fob will mechanically unlock the steering wheel lock.

I two complete matched sets and swap all three components (as sets) often in my Spec Boxster race car.

08-19-2016, 08:01 PM	#7
thstone Certified Boxster Addict Join Date: Nov 2010 Location: Los Angeles Posts: 7,669	The DME, transponder (the little "pill" inside the key fob), and immobilizer all have to be programmed as a set. If you replace any single component of the set, then that component has to be re-programmed to work with the other two components. It is often easier and cheaper to buy a replacement set of all three components and swap them all at one time. You will also have to swap the key shank from the "old" fob to the "new" fob so the "new" fob will mechanically unlock the steering wheel lock. I two complete matched sets and swap all three components (as sets) often in my Spec Boxster race car. __________________ 1999 996 C2 - sold - bought back - sold for more 1997 Spec Boxster BSR #254 1979 911 SC POC Licensed DE/TT Instructor Last edited by thstone; 08-19-2016 at 08:04 PM.