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Hello,
I have a 2002 si with no mods except a Karr 4040 alarm. First I am looking for a Haynes type (preferably much more thorough) manual for my vehicle. Hopefully with detailed wiring diagrams.

Both of my power door locks will not unlock. Both work from outside with the key. Switch only activates the back hatch lock. I cannot remember if they went out at the same time or separately. I found where the alarm ties into the White/blue and white/green wires and verified that at least to that point the signal is going through. Is there any other way to troubleshoot other than trying to replace one of the actuators?

I also have the SRS light on. I checked battery voltage without anything connected to it ang it read 12.35v. With everything connected it read 12.15.

Last problem is check engine light code p0420 and a code with something about "rear bank" in the code description. I can get the exact code later today. I understand that two possible causes are low oil pressure and the downstream 02 sensor. Just got an oil change (20-25 miles ago) and cleared the code so I am waiting to see if it comes back on. Just looking for ideas if it does.

Thanks,
Noidtymer