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Steve Tinker · 02-24-2014, 09:14 PM

Looking at the 101 Projects manual, the USA cars have the postive (+) on the LHS and the nagative (-) is on the RHS.

I think you will have some pain after reversing the polarity - usually from the alternator diodes, but lots of electronics in the alarm system cannot tolerate reversed voltages - and even worse if the ignition key was in and activated.
The fusebox is in the footwell, the alarm fuse is under the passenger seat and some engine related relays are mounted in the rear trunk. All of the fuses will have to be removed and tested with a DMM for continuity.

02-24-2014, 09:14 PM	#20
Steve Tinker Registered User Join Date: Dec 2008 Location: Queensland, Australia Posts: 1,522	Looking at the 101 Projects manual, the USA cars have the postive (+) on the LHS and the nagative (-) is on the RHS. I think you will have some pain after reversing the polarity - usually from the alternator diodes, but lots of electronics in the alarm system cannot tolerate reversed voltages - and even worse if the ignition key was in and activated. The fusebox is in the footwell, the alarm fuse is under the passenger seat and some engine related relays are mounted in the rear trunk. All of the fuses will have to be removed and tested with a DMM for continuity. __________________ 2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley. 2001 MV Agusta F4.