Question about 1990 Nissan 300ZX

2 Answers

BATTERY WHAT IS THE BLACK CABLE CONNECT TO MY POSITIVE BATTERY CABLE ON MY 1990 NISSAN 300ZX

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 1 Answer

It's actually the power wire for everything in the car. Unplug it and the car won't do anything. I wondered that also when I changed the battery, so I tried it with and without, and without the smaller black wire( smaller than the terminal wire) nothing will work. So possible it is the power for the ecu. Where the ECU is directly underneath it on the other sode of the firewall.
Hope this helped you.

Posted on Apr 22, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I'm not sure what you are trying to say...
If you are saying that you have a Black Cable connected to your Positive side of your battery, then you need to check the following:
As you probably know, there should be a cable (probably black in color) with some sort of Red marking on it or a Red Rubber boot that goes to the Positive terminal on the battery (the battery should also have a + sign or a red indicator on the battery). The other Black Cable should go to the Negative side of the battery and run straight to the firewall or some metal grounding spot in the car.
Any other way will not be a good thing for the car or the ECU.

Posted on Feb 18, 2009

  • Dawg1946 Feb 18, 2009

    If on the other hand you are trying to say that you have a separate black cable that is connected to the regular positive cable that is connected to the positive terminal on your battery, then it could be anything. It could be a connector to some other device in the car. Maybe an aftermarket device like an electric cooling fan. Hard to know...you may have to try to trace it to see where it goes.

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Alternator fuse location


Follow your wire to positive side of battery,there's a fusible link,could be burnt up.

May 22, 2013 | 1990 Nissan 300ZX

1 Answer

Replacing battery cables on 1990 300zx


I have a 1996 300ZX Fairlady Left hand drive. I tried replacing the battery. Now the head light flash and wont start. WHY? must I reset? and Where?

Mar 17, 2013 | 1990 Nissan 300ZX

1 Answer

1990 nissan 300zx auto not shifting?


you might have to change your strainer and fluids

Feb 06, 2013 | 1990 Nissan 300ZX

1 Answer

How to replace battery


Open the hood of your car and locate the battery.
Disconnect the cable terminals from the old battery's terminals (negative/black first and then positive/red)
Connect the cables to the new battery securely - positive to positive and then negative to negative. The cable ends should not be able to move at all; any looseness can prevent your car from starting.

Sep 21, 2012 | 2005 Nissan Quest 3.5 S

1 Answer

I have a 1990 Nissan 300zx 5spd manual wont start i don't have power in the dash and i replaced the battery and it still wont start unless i jump it can you help?


if it starts when you jump it and have a new battery, the altanator is your next step....next time you jump it, leave it run with the lights and accesories on, take off the cables, is it kills the altanator is not doing its job.

Mar 21, 2010 | 1990 Nissan 300ZX

1 Answer

Trying to find where the starter is,I followed the positive battery cable?


follow the positive cable to the silonide and that is connected to the starter it is the only part that will be going into the transmission by the fly wheel

Mar 05, 2010 | 1991 Nissan 300ZX

1 Answer

Need location of starting circuit relay for 1990 Nissan 300ZX


Two areas in engine bay. Driverside fender well and fuseable links in front of battery

Aug 09, 2009 | 1990 Nissan 300ZX

3 Answers

1990 300 zx wont start


Hi try disconect and reconect your positive battery cable,....

Aug 19, 2008 | 1990 Nissan 300ZX

Not finding what you are looking for?
1990 Nissan 300ZX Logo

Related Topics:

125 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts

yadayada
yadayada

Level 3 Expert

60769 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

705 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Are you a Nissan Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...