Re: Runs for 2 seconds then shuts down (problem found for me)
Interresting story, never heard of this before. The only thing i can think about causing the related problem, is the data bus wire shorting out. The original radio uses the data bus for the steering wheel switches and/or the communication with the CD changer and power amplifier on the premium system.
The data bus is used by most of the electronic components to communicate with each other. The PCM for example gets the OK signal from the SKIM (security key immobilizer module) via the PCI data bus. Without the ok signal, the engine will start, but shut off after a few seconds.
The fact that also the instruments didnīt work, point toward a shorted data bus. Its the yellow/violet wire which is used for the data bus.