Welcome to RennTech.org Community, Guest
There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.
Here are some of the features available - once you register at RennTech.org
- View Classified Ads
- DIY Tutorials
- Porsche TSB Listings
- VIN Decoder
- Special Offers
- OBD II P-Codes
- Paint Codes
- Videos System
- View Reviews
- and get rid of this welcome message
It takes just a few minutes to register, and it's FREE
Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)
- No ads - advertisements are removed
- Access the Contributors Only Forum
- Contributing Members Only Downloads
- Send attachments with PMs
- All image/file storage limits are substantially increased for all Contributing Members
- Option Codes Lookup
- VIN Option Lookups (limited)
I am considering keeping a jump starter portable external battery in the car. I am wondering if this battery could be used, when connected to the car electrical system through the cigarette lighter socket, to power the car electrical system to allow me to drive back home in case the alternator fails and the car battery is low. Vendors claim that the car could even be started using the external battery connected through the cigarette lighter socket.
Is there any risk of damaging any car electrical system components doing this?
I purchased a 1999 Porsche Boxster 986 about a year ago and I'm having a few problems with the electrical accessories. The top worked fine when I bought it, but now it won't work sometimes. The radio also turns on, then immediately off at startup, and it won' turn back on until a few minutes later either by itself, when I use turn signals, power windows, brake, or even just by itself. After the car is "warmed up", then it will stay on. Other things won't work right or not at all, such as the alarms for, ignition, door open, light switches, etc. The fuses are all fine, and I know the battery had been replaced right before I purchased it. I haven't checked the relay for the top, but I am about to do that now. I feel like there could be a single problem creating all these issues. Any help would be greatly helpful and appreciated!
(This is a noob question! However, since I have not yet found a decisive answer I turn to the community. Please direct me to the correct post, if it exists! )
Carrera 4S 2008, 997.1 was put on hazards for 24 hours.
Afterwards, it appeared the battery was dead as hazards had gone off. Remote unlock was non-functional.
I plugged in the CTEK trickle charger ("car mode": 14,4V / 3,3 A) in the cigarette igniter. The car immediately exhibited the following behaviors:
-hazards lights flickering regularly, at approximately 3-4 Hz
-hazard button flickering at the same pace.
-Sport chrono's hands waving around erratically
I left the car in that state for 5-7 hours. After that period, I pressed the hazard button and the flickering stopped. I assumed the car was now charging.
Coming back to it 10 hours later, I unplugged the trickle charger; the battery was still dead.
I replugged the trickle charger, on car mode, and the flickering resumed. I gave it 12 hours.
This morning, I observed the flickering was still on. I tried to turn on the engine, to no avail. The car key remained locked in the ignition.
I could not pop the hood in order to obtain a voltage measurement from the battery's poles.
My hypothesis is that the electrical system is in a faulty state and needs a hard reset, before charging can occur. Perhaps I also need a different piece of equipment.
Any help... HELPS!
Ii rented an innova to clear the codes, i just had too many old one, but weirdly a PSM failure i had for a while, but came back :-(. While it was out i was able to press the PSM button off/on and it lit up and off and appeared everything worked. Also the sports button and that struss type button could be turned on / off. Now all are out :-(
I wonder where i can find out what is messed up.
I went under the drivers seat, i will attach pics soon, and will like to buy those connectors with cables to re-do all that cabling down there, it is ugly. Ideas?
Anyone experienced this scenario?
Upon turning ignition key, heard a click, and had no electrical power to anything on car. After opening hood and looking around I grasped the positive battery cable and pulled / jiggled slightly to check connection from where it disappears into the firewall (if you will) area, and all electrical power was restored... car started and everything fine? Next time I went to start car experienced the same scenario. My question is...where, what does positive battery cable connect to that would exhibit these symptoms. Thanks