I've been getting CEL on my tC for a little while. I took it to Autozone to get them to read the codes and they told me what I expected, evap system. I got a new gas cap and that went away for a while but now it's back. Since then I got an OBD2 reader and I see the following codes. Only one of them that I can actually find says that cylinder 4 misfire detected, I probably just need new plugs to take care of that, I'm well over mileage for current plugs. These other three codes, I cannot find. Does anyone know what they are?

C0104
C1504
C1600

 

You can find the list here: http://clubsciontc.com/forums/mainte...he-list-23714/ , I know there used to be on here somewhere but I couldn't find it.

Codes:

P0104 Mass or Volume Air Flow Circuit Intermittent
P1504 I didn't see that on the list
P1600 ECM Battery Back-up Circuit Fault

 

I realize this is very old but i am getting the same 3 codes and i was wondering if you found a resolution.

Note they are
C0104
C1504
C1600

Not P####!

 

Well I hope this helps you guys out.

C0104: Front ABS Sensor LH side. (Circuit open or battery shorted.)

C1504: Dynamic Stability Control Right Front Valve Malfunction.

C1600: 1600 is ECM BATT malfuntion.

The ECU draws power off of the battery. If you get this code it could be a few things:

1. The wire that feeds the ECU power is broken, corroded, or otherwise damaged.

2. The ECU isn't getting the right amount of voltage on this wire.

3. The ECU is damaged and needs replacement.

This code applies to the 2.4, 2,7, and the 3.4.