How to Unlock Steering Wheel w/o Electricity? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Lelandjt · 07-05-2023, 11:16 AM

In a normal car you'd stick the key in and turn it to "on" to unlock the wheel so while pushing the car you can turn the wheel to maneuver it. With this push button system is there any way to turn the wheel with a completely flat battery?

removedonut · 07-05-2023, 04:03 PM

No. Kinda niche scenario. Any reason you can’t just give it some juice?

Lelandjt · 07-05-2023, 04:40 PM

Quote:

Originally Posted by removedonut

No. Kinda niche scenario. Any reason you can’t just give it some juice?

Battery is flat and won't take a jump. I was able to push it straight out of the garage and the tow truck was able to maneuver into a good enough positon, but in a normal car I would have turned the car on the way out of the garage to get it in a better position for the tow truck.

DarkPira7e · 07-05-2023, 05:48 PM

Buy a jump pack, one with a real battery (not one of the little thing with 16ga cables) and keep it around for situations like this

Lelandjt · 07-05-2023, 08:03 PM

Quote:

Originally Posted by DarkPira7e

Buy a jump pack, one with a real battery (not one of the little thing with 16ga cables) and keep it around for situations like this

My running T150 with dual batteries was connected with thick jumper cables to the BRZ's terminals and the dash wouldn't even come on. I don't think a little battery jumper would have done anything. The dealer replaced the battery so when I pick it up I'll get whatever info I can on why it died and why the car had no power when connected to 14.2v.

DarkPira7e · 07-05-2023, 08:13 PM

Quote:

Originally Posted by Lelandjt

My running T150 with dual batteries was connected with thick jumper cables to the BRZ's terminals and the dash wouldn't even come on. I don't think a little battery jumper would have done anything. The dealer replaced the battery so when I pick it up I'll get whatever info I can on why it died and why the car had no power when connected to 14.2v.

I have jump started dual battery diesel trucks at -20f with one of these- https://www.jbtools.com/booster-pac-...-cranking-amps . Jumper cables can only charge progressively, they don't carry a charge as soon as you connect them. With that said, you should get at least something after a minute or two, there's definitely more wrong than just the battery if it wouldn't receive some sort of power

OldBiker · 07-06-2023, 03:37 AM

The battery has/had a short. Disconnect the red lead from the battery... attach to jumpers from running truck, essentially feeding your BRZ and bypassing the dead/short battery... car should get good voltage.

Lelandjt · 07-06-2023, 01:04 PM

Dealer said the battery had a bad cell, they've been seeing this some on recent new Subarus. Also, he agreed that if I'd disconnected the battery, then attached the jumper cables only to the BRZ's battery cables I would have had power and been able to jump it and drive it to the dealer. If you have a newish Twin remember this.

pope · 07-06-2023, 09:10 PM

Quote:

Originally Posted by Lelandjt

Dealer said the battery had a bad cell, they've been seeing this some on recent new Subarus. Also, he agreed that if I'd disconnected the battery, then attached the jumper cables only to the BRZ's battery cables I would have had power and been able to jump it and drive it to the dealer. If you have a newish Twin remember this.

This is a bad idea. Without the battery in the loop, the voltage regulator is unlikely to function correctly and you’ll get spikes that fry electronics.

Using the trick to power the car and unlock steering, okay; starting it without the battery in the loop, not advisable.

07-05-2023, 11:16 AM	#1
Lelandjt Senior Member Join Date: Mar 2020 Drives: '04 STi, '12 Mazda 3 Hatch Location: Breckenridge, CO Posts: 380 Thanks: 30 Thanked 122 Times in 89 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	How to Unlock Steering Wheel w/o Electricity? In a normal car you'd stick the key in and turn it to "on" to unlock the wheel so while pushing the car you can turn the wheel to maneuver it. With this push button system is there any way to turn the wheel with a completely flat battery?

07-05-2023, 05:48 PM	#4
DarkPira7e Rust bucket enthusiast Join Date: Feb 2017 Drives: 2013 Turbo Firestorm FRS Location: Vermont Posts: 3,954 Thanks: 3,215 Thanked 4,107 Times in 2,052 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	Buy a jump pack, one with a real battery (not one of the little thing with 16ga cables) and keep it around for situations like this __________________ Turbo FR-S Build - Build Thread JDL EL Recirc manifold, Boostlab BL58x Turbo w/ T51R, 17x9 ARC-8, IAG block

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07-05-2023, 04:03 PM	#2
removedonut Member Join Date: Jul 2022 Drives: 2022 Toyota GR86 Premium 6MT Location: Denver Posts: 79 Thanks: 11 Thanked 214 Times in 49 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	No. Kinda niche scenario. Any reason you can’t just give it some juice?

07-06-2023, 03:37 AM	#7
OldBiker Member Join Date: Mar 2023 Drives: 2023 Gray BRZ Location: SoCal Posts: 78 Thanks: 60 Thanked 77 Times in 41 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	The battery has/had a short. Disconnect the red lead from the battery... attach to jumpers from running truck, essentially feeding your BRZ and bypassing the dead/short battery... car should get good voltage.

07-06-2023, 01:04 PM	#8
Lelandjt Senior Member Join Date: Mar 2020 Drives: '04 STi, '12 Mazda 3 Hatch Location: Breckenridge, CO Posts: 380 Thanks: 30 Thanked 122 Times in 89 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Dealer said the battery had a bad cell, they've been seeing this some on recent new Subarus. Also, he agreed that if I'd disconnected the battery, then attached the jumper cables only to the BRZ's battery cables I would have had power and been able to jump it and drive it to the dealer. If you have a newish Twin remember this.

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