Originally posted by Gilly
I double-checked my info, it does seem that the range recognition switch would be the most likely cause. It sends a voltage-coded signal to the ETC (transmission control module) which in turn supplies the voltage for the reverse lights. Since it's voltage-coded, it would be especially important that the contact for the switch is clean; you haven't spilled anything into the shifter, have ya?
I'd break down the difficulty into removing the shifter from the car as maybe a 3, and replacing the range switch as around a 7 to 9 or so, depending on your patience. Drops considerably if you can get someone to get the instructions to you from MB (WIS)
Wow thanks for the help, Thsi all happened after my car came for the body shop so maybe the dust got in there and i have spilt some things accidently down.