BMW Terminal 15, 30, 30g & 30g_f Explained - Heated Steering Wheel DIY on E90 M3 Ep. 1[ENG SUB]

The series is about the heated steering wheel DIY on a BMW E90 M3. This video introduces the electric terminals; terminal 15, terminal 30, terminal 30g and terminal 30g_f of BMW E9x models. The common way to look up a proper power source, and the use of a DIY power indicator for us to locate the correct terminal are also demonstrated. ***Function of terminals*** -31: Ground -30: Battery (Constant +12V) -30g: +12V until 30 min after car sleeps -30g_f: as 30 but shuts down when power fails -15: ON when key switched to ignition ***Sections*** 0:00 Opening 0:43 BMW E9x terminals 2:34 Reading the WDS 4:31 Identifying terminals 7:20 The DIY power indicator 8:41 The common fuse tap 10:20 Power indicator DIY 12:56 Power indicator in action 15:02 Summary ***Crew*** Sound, Music & Edit by Christy Hsu ***Heated Steering Wheel DIY on BMW E90 M3*** Ep. 1 - BMW Terminal 15, 30, 30g & 30g_f Explained Ep. 2 - How to add a fuse Ep. 3 - Terminal 15 Extension with Electrical Relays Ep. 4 - Full walkthrough ***About FCGP*** This channel was established by Carl, a DIY lover in Taiwan. It’s purely out of interest. No due date for creation. #diy