I hate wiring... I really do [Help please] - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Tae-Hyun · 10-08-2011, 05:25 PM

I've search from threads, single posts, numerous of other threads, hell, even non car related threads on this stupid issue i have of mine.

The infamous Parasitic Draw!

We all hate this and these cars are notorious of this so with that being said. I've already factored out most.

Starter is good
Alternator is good
Check all grounds
Checked lose connections.
75amp alt fuse check.

Did the whole test light procedure and seen that i do have a draw. I go to my kick panel and pull out the "Room Lamp" fuse - and the light dims. So right there tells me that the draw has to be there. But question is, what all does the room lamp fuse run into; i've gathered - clock, dome light (room lamp) the front two dome lights & radio.

Question i have is; if you have no draw will the light be off or will it still be on only dim?

Im getting irritated on trying to find this and still no luck. I have an aftermarket stereo - but i even disconnected that radio harness and the light didnt dim. ECU disconnect - stayed on. Checked all fuses & relays, stays on. Only room lamp fuse dims.

Any help would be appreciated.

Thanks a lot!

Tae-Hyun · 10-09-2011, 12:03 AM

Hmm no love i see.

KOME · 10-09-2011, 12:13 AM

Just switch the fuse and see if it helps(And pray it does lol). Fuck man good luck.

Tae-Hyun · 10-09-2011, 12:36 AM

Quote:

Originally Posted by KOME

Just switch the fuse and see if it helps(And pray it does lol). Fuck man good luck.

Okay elaborate please. switch the fuse!?

If i think what your sayin; i've already switched that fuse out with another fuse.

DJDANGER24 · 10-09-2011, 01:26 AM

1st get a digital multimeter

Next, google: Battery Drain Parasitic Draw Testing

It's a tedious procedure, but it will save you $$ replacing batteries in the long run

holslut s13 · 10-09-2011, 01:42 AM

Quote:

Originally Posted by Tae-Hyun

Okay elaborate please. switch the fuse!?

If i think what your sayin; i've already switched that fuse out with another fuse.

Switching the fuse won't do anything to help you out on your problem.

A more precise way to measure the draw when the IGN is completely off is to connect a DVOM in series with the positive battery terminal and cars + batt terminal. The DVOM needs to be set to measure amps. Set the scale to large. Start pulling the suspected fuses(make sure doors are closed, obviously and check glove box light , I dont know if 240's have them but check it out) and watch the DVOM readout or have a buddy tell you the read out. You want no more than .030 mAh of parasitic draw. Here is a little picture to show you how to hook up the DVOM. IF you dont know how to use a DVOM ask someone to help you, if you don't hook up your DVOM leads correctly you could pop the internal fuse or fuck it up.

KiLLeR2001 · 10-09-2011, 01:53 AM

In this thread I learned that 240sx's are notorious for parasitic draw.

mxexux · 10-09-2011, 01:56 AM

+1 for what holslut said.

But, something that was not mentioned is having an FSM!!!!!! If you don't have one-- get one. There really is no excuse for anybody that has an S chassis to not have one.

Next... READ the FSM. It will tell you exactly what circuits each fuse protects. For some people it may not be easy to understand, but once you learn how to use the FSM, the only limiting factor for fixing your car is tools.

10-08-2011, 05:25 PM	#1
Tae-Hyun Zilvia Junkie Join Date: May 2010 Location: tx Posts: 321 Trader Rating: (2) Feedback Score: 2 reviews	I hate wiring... I really do [Help please] I've search from threads, single posts, numerous of other threads, hell, even non car related threads on this stupid issue i have of mine. The infamous Parasitic Draw! We all hate this and these cars are notorious of this so with that being said. I've already factored out most. Starter is good Alternator is good Check all grounds Checked lose connections. 75amp alt fuse check. Did the whole test light procedure and seen that i do have a draw. I go to my kick panel and pull out the "Room Lamp" fuse - and the light dims. So right there tells me that the draw has to be there. But question is, what all does the room lamp fuse run into; i've gathered - clock, dome light (room lamp) the front two dome lights & radio. Question i have is; if you have no draw will the light be off or will it still be on only dim? Im getting irritated on trying to find this and still no luck. I have an aftermarket stereo - but i even disconnected that radio harness and the light didnt dim. ECU disconnect - stayed on. Checked all fuses & relays, stays on. Only room lamp fuse dims. Any help would be appreciated. Thanks a lot! __________________ I only like you when you give me cookies.

10-09-2011, 12:03 AM	#2
Tae-Hyun Zilvia Junkie Join Date: May 2010 Location: tx Posts: 321 Trader Rating: (2) Feedback Score: 2 reviews	Hmm no love i see. __________________ I only like you when you give me cookies.

10-09-2011, 01:26 AM	#5
DJDANGER24 Nissanaholic! Join Date: Jun 2007 Location: San Diego (Fletcher Hills), CA Age: 40 Posts: 2,474 Trader Rating: (10) Feedback Score: 10 reviews	1st get a digital multimeter Next, google: Battery Drain Parasitic Draw Testing It's a tedious procedure, but it will save you $$ replacing batteries in the long run __________________ Built RB25 - RB The World - Vertex Everything @RBVertexRidge

10-09-2011, 01:53 AM	#7
KiLLeR2001 Post Whore! Join Date: Jun 2007 Location: オーランドフロリダ Posts: 7,955 Trader Rating: (46) Feedback Score: 46 reviews	In this thread I learned that 240sx's are notorious for parasitic draw. __________________

10-09-2011, 12:13 AM	#3
KOME Zilvia Addict Join Date: Dec 2010 Location: En mi casa Age: 34 Posts: 619 Trader Rating: (7) Feedback Score: 7 reviews	Just switch the fuse and see if it helps(And pray it does lol). Fuck man good luck.

10-09-2011, 01:56 AM	#8
mxexux Zilvia Junkie Join Date: Jun 2008 Location: SoCal 949 Posts: 363 Trader Rating: (9) Feedback Score: 9 reviews	+1 for what holslut said. But, something that was not mentioned is having an FSM!!!!!! If you don't have one-- get one. There really is no excuse for anybody that has an S chassis to not have one. Next... READ the FSM. It will tell you exactly what circuits each fuse protects. For some people it may not be easy to understand, but once you learn how to use the FSM, the only limiting factor for fixing your car is tools.