carmudgeons.com - View Single Post - P-car battery dead, what a PITA

FC · 01-16-2013, 09:57 AM

I got it working. The suggested ground (door latch) looked sketchy (seemed to have a weird finish) so I found a different one (base of door hinge) and that worked well and popped the hood.

Had to leave the battery plugged to the MCS for a few minutes to get enough juice to start, but it did. Problem is, in my haste, I initially reversed the polarity on the 997 battery (Doh!) and that blew two fuses (so far, that I can tell) because my PCM/Nav screen and radio were completely dead. Everything else seemed to work fine. Replaced the fuses after my drive and it all seems to work. Left the car with the tender plugged in.

01-16-2013, 09:57 AM	#5
FC Solving problems Join Date: Oct 2003 Carmudgeonly Ride: M5 / 718 GTS / Cooper S / GTI / LR4 Location: Metro Boston Posts: 25,264	I got it working. The suggested ground (door latch) looked sketchy (seemed to have a weird finish) so I found a different one (base of door hinge) and that worked well and popped the hood. Had to leave the battery plugged to the MCS for a few minutes to get enough juice to start, but it did. Problem is, in my haste, I initially reversed the polarity on the 997 battery (Doh!) and that blew two fuses (so far, that I can tell) because my PCM/Nav screen and radio were completely dead. Everything else seemed to work fine. Replaced the fuses after my drive and it all seems to work. Left the car with the tender plugged in. Last edited by FC; 01-16-2013 at 10:45 AM.