Porsche Psm Failure After Changing Battery

Porsche psm light may come on due to something as simple as low tire pressure but it can also be on due to a bad abs wheel speed sensor or come on after you replace the battery. In most cases each system is under the basic control of its own computer module.

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Electrical issues after replacing the battery late model vehicles have many computerized systems.

Porsche psm failure after changing battery. The problem will need to be diagnosed with a porshe obd ii scanner but if the cause is a bad abs wheel speed sensor the abs light and warning come on as well. What happens is after battery is dead it shuts off the computers and thats why you get that message. What is psm failure on porsche.

Hi i have a 2002 996 turbo with miltek exhaust and epl tune and am again being plagued by abs psm failure. Then stop turn the engine off and. When you first set off you will get an pasm psm failure notice flashing on the dash.

Posted on feb 01 2015. I first got the messages about six months ago at that time it came up under braking. Ignore it and drive for a couple of hundred yards whilst making some turns.

I ve also noticed that a persistent psm failure message on the dash can also be a symptom of a dying battery. After replacing the car battery you have to reset the computer in the porsche. What is psm failure on porsche after replacing the car battery you have to reset the computer in the porsche.

There can be more than twenty modules on each vehicle and many of these modules have some sort of learned memory which may be lost when the battery is disconnected. On the porsche cayenne a dying battery can cause a multitude of electrical glitches check engine lights cels and slow starter operation. What happens is after battery is dead it shuts off the computers and thats why you get that message.

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