Hi, everyone, I am new to the board, and I have tried to research these topics, but I am sort of at my wits end. My car is a 1999 Boxster with manual transmission with 131,000 miles on it. All of a sudden, the windows and door locks started to act very wonky. If I try to lock the car with the fob, you can hear the mechanical whizzing of the locks and then a double beep from the alarm, and the doors do not lock The lock button on the dash does not work. The driver's side door will lock with the key, but not the passenger's side. the windows are very peculiar. If they are both down, and I put the passenger side window up all the way, the driver's side window will go up without touching the button.
My mechanic pulled codes, and this is what he got:
Airbag:
03 -- Airbag warning supply
29 -- ignition circuit-side airbag, driver
49 -- belt buckle, passenger
46 -- belt buckle, driver
31 -- ignition circuit-side airbag, driver
21 -- ignition circuit, driver
45 -- belt buckle, driver
Alarm System:
25 -- terminal 86 is not detected
36 -- passenger compartment monitoring sensor
42 -- wrong key or wrong transponder pill
11 -- voltage failure during alarm output
10 -- voltage failure at terminal 30 with alarm system active
46 -- control locking synchronization
34 -- passenger compartment monitoring sensor
47 -- control locking synchronization
58 -- tank servo motor not energized despite relay activation
61 -- central locking limit position unlock not reached
He suggested that I should replace the M535 ECU. I have checked all of the related fuses, and I have checked the fuse on the M535. I opened the M535 box, and cleaned everything the best that I could. There were definitely signs that there had been water in the box.
The car runs and drives, the convertible top works fine, I just can't lock the doors and set the alarm. Does this sound like it is an issue with the M535 box or more of the door locking mechanisms? Or, is it due to the electrical part of the ignition switch? Any suggestions, or ways to troubleshoot would be appreciated.
Thanks,
Rob
1999 Boxster, Arctic Silver over red, 5sp manual