Well I installed a system and had no problems. One amp and head unit with speakers. Then I decided to put in a unique sub/amp/box combo. I couldnt find that anyone had done this so it had to be done from scratch and took about 2 weeks. Most of the time the battery was disconnected (realized I had to resync my fobs). Well I did the big 3 and installed a yellow top Optima as well.

The system sounds great and I'll post pics soon. However, I always get the "Service vehicle soon" message when I start the car. I ran the diagnostics and came up with:

10-PCM P1637H
BO-RFA U1096H
U1064H
U1016H
I had some other codes but they cleared after clearing them and then disconnecting the battery for a few minutes. The above codes will clear but then reappear as soon as the car is started.

*** Important - The only problem I had was in wiring to the battery. I had the car wires connected to the terminals on the face of the battery except the large 0/1 gauge wire coming from the alternator. I was connecting it to the fuse, or preparing to fo this, when the large connector that screws onto the wire (the actual fuse attaches to this and then to a similar connector to the other end of the wire) came into contact with the negative terminal of the battery. It started smoking and right away I knocked it off the top negative terminal. It melted away a tiny piece of the negative post. Next while tightening the other terminals (original ones) I touched the wrench to the positive while tightening the negative. I know, I couldn't believe how stupid this was. Anyway, everything still works great. The battery runs between 13.7 and 14.1 volts. I can blast the stereo for 20 minutes and still start the car. No battery issues at all.

So did I fry something in the computer when this happened? What do you guys suggest?

As always thanks for any help,

Chris.

p.s. The box build works great. I can't wait to get the pics up for you guys. I sounds great.

 

unhook battery for 10 min, and hook it back up see if it resets it

 

I tried that. Well I think it was 10 minutes. Is that time firm?

 

10 min should be plenty c5 or c6?

 

C5, I've had it disconnected for about 30 minutes now. I'm going to go back and connect it now. Ok that took care of everything except the
P1637H ** That just won't go away

 

its a history code because of the H i think

P1673 Engine Hot Lamp Control Circuit

 

P1637H "L-terminal circuit" It is H but it is a new code everytime the car is started so really it is an intermittent code. I would think with doing the big3 that voltage would not be an issue. I am baffled. I have read the big summary at the gear page but my code reader never picks up the code so I couldn't really find a good answer. I don't know maybe that guy Bill Curly might have an idea?