What do the codes 1128, 1129, 1133, and 1134 mean on my Porsche Boxter 2001?

Unfortunately your best bet is to go to the dealer to get a code.

NECESITO UNA LLAVE DE PORSCHE BOXSTER 2001

Faulty Brake light switch ubder the brake pedal would have been my firs as well but if you haco rear lights at all it could be either a fuse or a faulty head light switch whisch controls that.

Try turning your steering wheel hard to the right , then left while turning the key. Steering wheel lock and ignition lock are somewhat co-dependant

You should be able to enter the 4 digit code via the radio. If the radio has been replaced, you may need to recover the radio's serial number: Porsche Boxster: Online Lost Radio Code Recovery Tool

fuses

My 2000 Boxster developed a pin hole leak in the coolant reserve tank in the rear trunk. The trunk floor is actually raised, which allowed the coolant to go unnoticed, since the carpet never got wet. I would pull back the carpet on the side and see if there is coolant in the trunk area. If so, the plastic reserve tank will run you about $300 for the part. It is a bit of a pain to replace, but something the average home mechanic can do. Only real hassle was the hose clamps in the engine bay were installed before the engine, hence the engine was in the way of the screw head.

you need to go to the dealership and have them type in the radio synchro code. that will than allow you to type in the security code

You can recover the radio's serial code from the radio display and then find the code using the following online algorithm: <A HREF="http://www.a2dvoices.com/realitycheck/porsche/">http://www.a2dvoices.com/realitycheck/porsche/</a>

disconnect the alarm