Jumpstarted my NSX and then.....

[BillyIdol]

I have a 1991 Black on Black NSX, 5 speed. I'm in the Los Angeles area. My NSX has not been starting up lately due to the tail lights being on all the time. I know now that the solution is to install a new brake pedal stop on the brake pedal. My battery kept discharging all the time. I had to have Auto Club come over to give me a jump start. The last time they attempted to jump start me, the security system started beeping and some electronic smoke came out of the CD player. This has never happened before. I think that he attached the jumper cables on the wrong posts and blew a circuit.

I was going to take my car this morning to (4/12/2018) Niguel Motors to have Ramon work on it. I had Auto Club come over to jump start it, and dash lights came on and headlights came on. I tried to start it, but it won't start. I'm thinking that the previous jump start blew a circuit. Autoclub wants to tow the car and they want to fix it. But I would rather have Ramon at Niguel Motors look at it since he is a NSX specialist, and then just bill Autoclub.

1-How much would it cost to replace that circuit?
2-Most likely, which circuit needed to be replaced?
3-Would you let AutoClub repair shop work on an NSX circuit or should I go to Niguel Motors?
4-Any other advice?

John
626-710-0973

 

[BillyIdol]

5-Did I just blow a fuse?

John

 

[kennyvb]

Did AAA use this method to jump start the car: http://techinfo.honda.com/rjanisis/pubs/OM/NS9292/NS9292O00195A.pdf

I would take the car to your shop of choice with Niguel Motors being an excellent one

 

[mwagner10702]

5-Did I just blow a fuse?

Sounds like you may have blown the 120A fuse. Check the Engine Compartment Fuse Box. The 120A fuse is #9 .

 

[BillyIdol]

Thanks guys!

If the blown fuse is in the engine compartment box, would that make sense with the electronic smoke coming from the CD player? Isn't there a fuse near the CD player in the dash?

John

 

[mwagner10702]

All bets are off with aftermarket stuff, but I'd wager the fuse for the CD player would blow pretty quickly and probably before the 120A main distribution fuse.

 

[BillyIdol]

mwagner,

Would a blown fuse for a CD player cause the car not to start? Would any blown fuse cause the car not to start?

John

 

[mwagner10702]

. . . Would a blown fuse for a CD player cause the car not to start? Would any blown fuse cause the car not to start?

No. The CD fuse is collateral damage - ignore it for purposes of diagnosing your issue. Provide more detail regarding "cause the car not to start." When you turn the key does the engine turn over?

Check the 120A main distribution fuse.

 

[BillyIdol]

When I was jumpstarting, dashlights on, headlights on, when I turn key...,nothing happens. It does not turn over at all.

John

 

[mwagner10702]

Check that 120A fuse. Also - here is another thread with a similar problem. Note the OP indicated dash lights still worked after he blew his 120A fuse.

http://www.nsxprime.com/forum/showthread.php/196362-installed-a-new-battery-reversed-polarity!!!

 

[BillyIdol]

I looked in engine bay fuse box. I did not see number 9 fuse at all. I saw fuse 10 and 20 though. Nothing looked burned out.

Where is main distribution fuse? (1991 NSX)
Is main distribution fuse the same as number 9 120 amp fuse?

Thanks!
John

 

[mwagner10702]

Number 9 is your 120A fuse. Please download the service manual.

View attachment 152712

 

[Old Guy]

Check that 120A fuse. Also - here is another thread with a similar problem. Note the OP indicated dash lights still worked after he blew his 120A fuse.

http://www.nsxprime.com/forum/showthread.php/196362-installed-a-new-battery-reversed-polarity!!!

The 120 amp #9 fuse does not supply everything in the car. Things like all of the courtesy / interior lights, the headlights, the lights on the CCU / radio if the headlight switch is on and some other stuff will still operate if the 120 amp fuse is blown because they are supplied directly off of Bat power. The 50 amp #29 fuse is also separate and unaffected by the 120 amp fuse failure. The 50 amp #29 fuse supplies the ign 1 circuit and start circuit through the ignition key. The other important fuse is the 30 amp #12 fuse which supplies the ign 2 circuit through the ignition key. As such, checking all three of those fuses in the event of non start would be a good thing. Failure of any of them will I believe render the car in operable. #9 and #12 are in the engine compartment fuse box. #29 is in the front main fuse box.

The other thing for the OP to check is that they are not missing the clutch interlock switch button. If they were in poking around looking for the brake switch button and somehow dislodged the clutch interlock button, that will turn the car into an instant non starter.

Also for the OP - is the MIL (check engine light) coming on when you switch the ignition switch to the run position? If those three fuses are good and the MIL is not lighting up, that would be a bad thing because it means that your ECU is not powering up. If that is the case and you are not set up for a deep dive into diagnostics, probably best to have it trucked to somebody who is knowledgeable about the NSX.

 

[docjohn]

for any new owners of the old nsx please read the manual on jumping the nsx...it is not like other cars.

 

[hondasash]

Where does the manual state something about jumping the X?

for any new owners of the old nsx please read the manual on jumping the nsx...it is not like other cars.

 

[DocL]

Where does the manual state something about jumping the X?

In the back of the manual there is a section called "INDEX". Under "J" there is a line "Jump Starting". May i suggest that you RTFM.

 

[Old Guy]

for any new owners of the old nsx please read the manual on jumping the nsx...it is not like other cars.

Requires looking at paper and reading - a skill set that is becoming increasingly rare.

As an observation, learning about the jumpstart terminal in the engine compartment relay box is useful, just because it eliminates the hassle of having to remove the spare (if you still have it) to access the battery. However, use of the jump start terminal does not preclude incorrect connection of the jumper cables. If jump starting from the battery, the red cover on the battery terminal should make it apparent which is the positive terminal and if the identifying marks have all gone missing, savvy individuals would know that it is really really important to confirm which is the + terminal before proceeding. As such, I must attribute reversing the jumper cables to either incredible absent mindedness or incompetence. Unfortunately, using the jumpstart terminal instead of the battery terminals is not going to address those particular problems.

 

[mwagner10702]

Where does the manual state something about jumping the X?

In the back of the manual there is a section called "INDEX". Under "J" there is a line "Jump Starting". May i suggest that you RTFM.

View attachment 152761

 

[hondasash]

...not in MY PDF version.

 

[kennyvb]

I linked it up above and here it is again lol http://techinfo.honda.com/rjanisis/pubs/OM/NS9292/NS9292O00195A.pdf

 

[docjohn]

that added to the exoticism of the first nsx...:wink:

 

[furinax]

Just out of curiosity, why the special jumping instructions? I have jumped mine with the battery up front just fine.

 

[Ric]

Just out of curiosity, why the special jumping instructions? I have jumped mine with the battery up front just fine.

Is it because of this from Old Guy?

As an observation, learning about the jumpstart terminal in the engine compartment relay box is useful, just because it eliminates the hassle of having to remove the spare (if you still have it) to access the battery.