2003 deville with error codes - 2003 Cadillac Deville

Question edited for clarity, spelling of the maker, toss in some CAPS and make sentences.
Question moved to model category.

Both are Transmission errors

E-39 Error

https://caddyinfo.ipbhost.com/topic/10886-92-deville-error-code-e39/

and E-98

Diagnostic Code -- E98 Need Help

Cadillac Owners Forum https://www.cadillacforums.com > threads > diagnostic...
Nov 9, 2005 - E98 - High RPM P/N to D/R in ISC Range check your tranny. its sometimes called a VCC overstress error. dont change gears until car is totally ...

Great, now I have MORE trouble codes!! E91 and E98
Aug 7, 2006
Error codes E22, E32 E52 E98 - Cadillac Owners Forum
May 5, 2004
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you should checkout this website www.reliable-store.com that has books on all vehicles, name it they have it.

it covers wiring diagrams, electrical diagrams, fuse diagram, torque specs, PCV, error codes, fault codes, service info, repair info, parts info, owner's/service/repair/parts/maintenance manuals etc everything totally..
I have ford expedition and I keep servicing and when needed repair it on my own. worth it !!!

What code's and were they diagnosed , You can't just pull a battery cable and have the light go off . If the light comes back on there is a hard falt . Trouble Codes Just incase your not familiar with DTC'S and OBD2 diagnostic's

I don't think there is an "old-style" PCV valve on the 2003 Deville, instead, it was 'replaced" by an orifice that is pressed into the cam cover fitting. I think the PCV system came under the EPA's OBD mandate as an emission device that needs to be monitored by onboard systems, and so the "old-style" PCV valve was replaced by a simple orifice (removing one more possible failure point). The onboard system monitors the flow and operation of the PCV system, so if something goes wrong, it will set an error code and turn on the check engine light - even if you just have a cracked or disconnected PCV hose.

Probably faulty abs module, traction control is part of the same system

On a lot of cars the light is reset when you get an oil change, air filter etc. It's overdue for a "look see". You can always go to advance auto and borrow the code reader for free. Plug it in under your dash and will read and reset any codes

P410 code secondary air injection malfunction
It could be internal head cylinder problem
I would have it checked out

change the air fow senser.

put a new gas cap, those system are pres. even if
the cap look ok it maby leaking replace with a new
one it should solve your prob.
eng.ligh come on because of the gas cap

Check your pending trouble codes, could be your crankshaft sensor b...