Porsche TPS INACTIVE message

Asked by Mar 06, 2016 at 05:14 PM about the 2007 Porsche Boxster S

Question type: Maintenance & Repair

Battery replace and now I get the TPS inactive message on the board . Can
you tell me what I can do to fix this ?
And if is complicated can you recommend a shop in northern nj
Thanks

7 Answers

100,335

Yes it is complicated and you will need a Porsche dealer to fix it. What happened is when you took out the battery the presets were wiped from the computer system. I don't know if that information is in the owners manual under battery or not. They make a little tool that plugs into the lighter or power port just before the battery is disconnected, this helps keep the presets alive while the battery is being replaced. HTH

1 of 1 people found this helpful.
25,755

I thought the TPS ( tire pressure sensor ) relearned and reset itself after driving the car. The pressure info should be preprogrammed into the cars computer. I thought I have read that somewhere before.

1 of 1 people found this helpful.
25,755

It could also mean the battery in the sensor itself could be going bad. I would drive it for a few days and see if the message goes away. The batteries in the sensor are over 8 years old by now so it is possible they are failing there is one for each wheel. Heres a link with some info on TPS failure that will get you to speed: http://www.6speedonline.com/forums/997-turbo-gt2/275398-help-pls-tpc-inactive-what-does-mean.html

100,335

TPS is the throttle position sensor. TPMS is for the tires. So if it is the TPMS there should be a reset procedure in your owners manual. Some use a magnet, some will have you lower the tire pressure slightly to reset the sensors. And no it is not any thing critical as long as you keep tabs on your tires.

25,755

Oh sorry, I thought he / she was reffering the the tire air pressure sensors. Too much coffee on my end please carry on.

100,335

I'm confused too, now I don't know if it is engine controls or tires sensors.

1 of 1 people found this helpful.
25,755

I thought it was just me LOL. I did a quick search on 2007 boxster tps inactive and keep getting tire pressure monitors going bad and replacement units as the primary result. So we may need more info from you Trapito to get the correct asnwer. Is it just the error message or is the car itself running differently that before the battery swap?

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