Question about 2005 Porsche Boxster

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2005 Porsche Boxtser S - PSM & ABS Failure

Just tried to get into my car and the electronic key doesn't work. Used the manual key lock to get in, alarm sounded, alarm stopped, sat down and put key in ignition and it won't start. Warning said the PSM and ABS had failed and that it needed to be taken to the Workshop. The spoiler went up and is now locked in the up position. What has happened???? Only used the car 3 weeks ago and it was fine. Now it won't start. It also keeps saying that 'the ignition key has not been removed'. Very odd.



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  • cwnas Jul 05, 2008

    i never had a response on this?

  • cwnas Jul 05, 2008


  • Anonymous Mar 15, 2009

    Just experienced the same problem.



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I have a similar problem my car will not turn over after pumping gas the accessories come one but will not start

Posted on Nov 01, 2008

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U hung up
you will have to try again

Posted on Jul 05, 2008

  • chris07551 Jul 05, 2008

    can u try live chat to me at all i no exactly wats wrong with ur car as this happenes at my work all the time



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1 Answer

What is Psm failure on porsche

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

Jan 31, 2015 | Porsche Cars & Trucks

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The ABS/PSM warning light on my 2003 Boxster came on, stays on. Specialized Mechanic said it was the ABS Hydraulic control module, extremely expensive and not available in US. Car has only 55K mile. Is it...

Yes you can still drive it. When the ABS system fails, it reverts to the old system. Meaning that when and if you hit the brakes hard enough, the wheels could lock and skid. By releasing them they will roll again. We drove forever with out ABS and most of us are still alive.

Aug 09, 2011 | 2003 Porsche Boxster

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You will need to reset the throttle potentiometer by switching on the ignition (to second position) for at least one minute then switch off before starting the engine. - do not press throttle during the one minute wait.

Detailed battery changing instructions are available in the workshop manuals which can be downloaded for free (in pdf format) from

Feb 26, 2011 | 2002 Porsche Boxster

1 Answer

2003 Boxster. PSM and ABS dash light stay ON

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.

Apr 04, 2010 | 2003 Porsche Boxster

1 Answer

I have a 2000 porsche carrera 2, which has PSM & ABS warning lights constantly on. I am unable to use the PSM switch, as it does not respond. My mechanic just replaced a speed sensor on the front...

If you have voltage from all of the speed sensors on the wheels, only then think about getting the ABS pump control repaired or replaced. It could be the reluctor.
I repair Volvo and Mercedes without issue so I think you could get the module repaired at a competent repair shop.
Took me 20 minutes to remove, repair and replace the module on the V70. Mercedes took a bit longer as the module was awkward to get to.

Jul 01, 2017 | 2005 Porsche Boxster

1 Answer

Compurter says PSM and ABS failure - Porsche Boxster 08/2002


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 day with the roof down!!!! (Where has the sunshine gone!!!????)

Jun 28, 2009 | 2005 Porsche Boxster

1 Answer

PSM failure with Boxster

I had these problems on my 2005 911 when the battery died. Apparently when it goes IT GOES. I had no problem with the battery until this time and then suddenly it was dead.

I've heard since that this is common on Porsche 996 when the battery is dead and then is should also be the case with the 986 Boxter since these 2 share a lot of components.

I removed the old battery and left the car without a battery for at least 30 minutes (while doing some other maintainance). Put a new battery in and no problems after that. On most cars if you disconnect the battery for like 15 minutes the maintainance computer resets its self and all warninglights should dissapear unless there is a real fault, then the appropriate light should come back on!

Good luck.

Mar 15, 2009 | 2005 Porsche Boxster

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