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after replacing the car battery you have to reset the computer in the porsche. what happens is after battery is dead it shuts off the computers, and thats why you get that message
At www.reliable-store.com get complete guide on whether to repair or not, service it, and how to repair etc, along with wiring diagrams, electrical diagrams, torque specs, error codes, everything.
computer is expensive before i invested in one id try to replace the sensors that control those circuits if that dosent solve the problem then id try changing the proms in the computer then lastly the computer.
Just had same problem this morning. I had noticed that the satnav was malfunctioning (i.e. developed a mind of its own!!) a couple of days ago and then this morning PSM/ABS failure......marvellous!! Anyway, simply disconnected battery, waited 10-15 mins, reconnected battery and hey presto my boxster fired up. However the PSM failure message still showed, so took it for a spin around the block and the message disappeared and, touch wood, everything seems back to normal. I think it must have been a battery problem, so just to safe I am going to get a new battery and hopefully I can look forward to years of trouble free motoring.....one day with the roof down!!!! (Where has the sunshine gone!!!????)
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