2012 Winnebago Access Premier, Ford F450 V10

GoldToyBox wrote:
I checked fuses & relays that I figured might be the problem.
#38 Relay Electronic Control Module
#52 10amp Electronic Control Module/transmission Control Module
#72 10amp electronic Control Module/Keep alive power

All testing ok.

Codes found with my reader:
P0138 02 (H02-12) check high volt (B1, S2)

P2270 02k Sensor stuck lean (B1, S2)

So this seems to tell me: Bank 1 Sensor 2 is alarming or is bad?
Wonder where it's located? on the exhaust or header pipe? or ??

I cleared the alarms and will give a test drive when weather allows. See what codes reappear.

Thanks for helping.

What reader do you use? How do you "clear" the codes and ... don't/won't the codes occur again soon if you don't do any repairs?

Also once one uses a reader, where does one look to see what the codes mean? Is this included in documentation that comes with the reader?