986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - 2000 986 2.7 - No low beams/wipers/cabin fan unless plugged in home trickle charger

maxbottomtime · 07-07-2025, 12:34 PM

I’d look at your ignition switch. Mine was failing and I’d have to jiggle the key to get the power to the hvac. Could be your 12v trickle charger (I assume cigarette port?) is back feeding the other systems.

07-07-2025, 12:34 PM	#5
maxbottomtime Registered User Join Date: May 2025 Location: Midwest Posts: 54	I’d look at your ignition switch. Mine was failing and I’d have to jiggle the key to get the power to the hvac. Could be your 12v trickle charger (I assume cigarette port?) is back feeding the other systems.