Need help! possible problem on alternator or EPS

[NSXkkk]

my EPS, ABS, battery lights all come up after i put into any gear. also, battery is overcharged.
my steering wheel is extremely heavy, and it's very hard to turn it around.

sent to the merchanic already, they said that it must be alternator broken or something wrong with it. so does anyone has this kind of experience?

 

[Thanhnsx]

Sounds like your powersteering is off for some reason. You might wanna check out your EPS fuses

 

[NSXkkk]

actually, i just reset ECU. no luck.
where to check EPS fuse? anyone knows what page on service mannual.

 

[Thanhnsx]

actually, i just reset ECU. no luck.
where to check EPS fuse? anyone knows what page on service mannual.

Open up your front hood. There should be a fuse box on the passenger side. Locate the fuse. Look under the cover for diagram..it will say EPS

 

[Briank]

The Power steering is electric so if you have a electricial system problem then its not going to work properly. How do you know the battery is over charged?

 

[NSXkkk]

The Power steering is electric so if you have a electricial system problem then its not going to work properly. How do you know the battery is over charged?

the merchanic tested the battery. also, on the dash board, it went over full if i put into gear and drive it. (battery light also comes up)

 

[Briank]

You need to get the charging system fixed first and then work on the other problems if they are still there.

 

[NSXkkk]

You need to get the charging system fixed first and then work on the other problems if they are still there.

oh yeah. this is what they gonna do for me. change the alternator and see what's going on. right now, it's pretty sure that alternator overcharged battery. :frown:

 

[4AU4LIFE]

Wow, I've never heard of an alternator overcharging.
Is that a common problem?
Please keep us updated.
Lucky for me I have m/s.:tongue:

 

[Larry Bastanza]

Wow, I've never heard of an alternator overcharging.
Is that a common problem?
Please keep us updated.
Lucky for me I have m/s.:tongue:

Bad voltage regulator (inside the alternator housing)

The NSX has a good size alternator, and they rarely go bad, but in general it is not that rare. Usually they stop charging rather then overcharging.

HTH,
LarryB

 

[NSXkkk]

right now. they changed battery and alternator and told me that it's working correctly. i will see what happen later.