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Sparkatan
Newbie


Joined: 18 Nov 2018
Posts: 4
Location: Leeds


PostPosted: Fri Jan 31, 2020 8:21 am    Post subject: 996 C4S Radio problem Reply with quote

Hi, my PCM radio unit has developed a problem.
I'm driving, the screen suddenly goes blank, buttons stay illuminated, no sound. Porsche screen comes on, goes off again, buttons illumination goes off. Periodically the Porsche screen comes on again and goes off. All this time the mini computer screen states which radio channel I was listening to at the time it went off. Switching the unit off and on makes no difference, other than the small screen saying 'radio off'.
When I stop the engine, remove the key, reinsert and restart the engine the radio unit operates normally. Problem reoccurs after a short while.

I read somewhere this is an ignition switch issue but surely this would just turn the unit on and off, not make it do what i've described?

2003 996 C4S Tiptronic.
 
  
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7800
Location: Brighton


PostPosted: Fri Jan 31, 2020 8:58 pm    Post subject: Reply with quote

It's either a poor connection with the 12 volt feed .. which i doubt or a problem with the Pcm .. which i have seen .. a garage job im afraid for them to diagnose as short of hooking up a voltmeter and trying to watch it whilst driving and the fault happening is not advisable .
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My Daughter's Crowdfunding has hit the target .

Thank you all so Very much .

She's not going until july 2020 though .



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