No 12v power when car key isn't turned - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Overdonebacon · 04-19-2018, 01:50 PM

So I just picked up 1992 240sx with a ka24de. I'm brand new to this chassis let alone the brand.

So my question is, why is there no 12v power when the car is off. Radio resets, seat belt sliders don't work, map light and dome light dont work. Nothing. Though once I turn the key atleast 1 click everything comes to life.

Is there like a relay that's gone bad? I can't seem to find the issue.

Thanks

potatomonkey99 · 04-19-2018, 09:06 PM

Just hook whatever you need as 12v directly to the battery. Invest in a 24 pin breakout.

tuzzio · 04-20-2018, 08:06 AM

Quote:

Originally Posted by potatomonkey99

Just hook whatever you need as 12v directly to the battery. Invest in a 24 pin breakout.

Although this is an alternative to further bastardizing wiring, some people like the oem function of a lot of things.

I'd probably start by inspecting the wiring under the column. Sounds to me like someone crossed two wires where they shouldn't have.

Overdonebacon · 04-20-2018, 09:28 AM

Quote:

Originally Posted by tuzzio

Although this is an alternative to further bastardizing wiring, some people like the oem function of a lot of things.

I'd probably start by inspecting the wiring under the column. Sounds to me like someone crossed two wires where they shouldn't have.

Yeah XD. I'm trying to keep it OEM unless worse comes to worse. I'll check again to see if anything got crossed.

tuzzio · 04-20-2018, 10:21 AM

Also, check all the fuses in the driver side kick panel. Those do some funny things, sometimes.

Wondering if your TCU is burnt out as well.

Overdonebacon · 04-20-2018, 10:32 AM

Quote:

Originally Posted by tuzzio

Also, check all the fuses in the driver side kick panel. Those do some funny things, sometimes.

Wondering if your TCU is burnt out as well.

I feel so stupid. It was just a fuse BUT it was the room lamp fuse.

tuzzio · 04-21-2018, 08:02 AM

Quote:

Originally Posted by Overdonebacon

I feel so stupid. It was just a fuse BUT it was the room lamp fuse.

Don't stress it. We've all done the same thing before.

04-19-2018, 01:50 PM	#1
Overdonebacon Join Date: Apr 2018 Location: Anaheim, CA Age: 23 Posts: 3 Trader Rating: (0) Feedback Score: 0 reviews	No 12v power when car key isn't turned So I just picked up 1992 240sx with a ka24de. I'm brand new to this chassis let alone the brand. So my question is, why is there no 12v power when the car is off. Radio resets, seat belt sliders don't work, map light and dome light dont work. Nothing. Though once I turn the key atleast 1 click everything comes to life. Is there like a relay that's gone bad? I can't seem to find the issue. Thanks

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04-19-2018, 09:06 PM	#2
potatomonkey99 Leaky Injector Join Date: Nov 2017 Location: Socal Posts: 74 Trader Rating: (0) Feedback Score: 0 reviews	Just hook whatever you need as 12v directly to the battery. Invest in a 24 pin breakout.

04-20-2018, 10:21 AM	#5
tuzzio Nissanaholic! Join Date: Oct 2013 Location: Western Mass. Posts: 2,254 Trader Rating: (3) Feedback Score: 3 reviews	Also, check all the fuses in the driver side kick panel. Those do some funny things, sometimes. Wondering if your TCU is burnt out as well.