I have a 1998 Boxster, tiptronic. I am installing a new radio.
Somewhere along the line I must have shorted something, because now
the car won't start. There is full power to the instrument cluster,
but when the key is turned to "start" nothing happens -- no crank, no
sound.
I have a Durametric. It returns a Code 25 fault, as shown in dm1.jpg.
The fault will clear, as shown in dm2.jpg, but returns when the key
is turned to Start, as shown in dm3.jpg. The status of the various
inputs is shown in dm4.jpg and dm4a.jpg.
My research indicated that the electrical portion of the ignition
switch might be the culprit, so I replaced it, but that did not
resolve the problem or change anything.
One clue to the problem may lie in the fact that the orange radio
wire, which is supposed to carry 12v when the ignition switch is in
the accessory position, has less than a volt when the switch is turned
to "accessory." A photo of the wire in question is dm5.jpg. A
Boxster book indicates that this wire is fused to E1, which is also a
fuse for the alarm system, I believe. Fuse E1 has 12v on both sides,
but that power is not being carried to the end of the orange wire, so
I am sure this is relevant to the alarm/starting issue. Note that the
starting problem arose only when I started tinkering with the radio.
All fuses in the kick panel are good, as well as the small fuse in the
immobilizer under the seat and the big fuse on the DME in the trunk.
In addition, every fuse in the kick panel has 12v going in and out.
Finally, note that the circuit board in the key head to turn the locks
on and off remotely does not work -- it is not even in the head. This
has not presented a problem as I lock the doors manually through the
door. I assume the transponder pill is ok, or I would be getting a
different code, and if that were the problem, the orange wire would
carry the proper voltage.
Please help!! Thanks.
