Bruce Nunnally

Mailbag: P0411

Recommended Posts

I have a 2007 Cadillac Dts that Check Engine Light came on. The code is P0411.

What does that mean, and approximately how much to fix it? Dealership, or can I

do it myself?


Bruce

2016 Cadillac ATS-V gray/black; 2013 Cadillac ATS 2L Turbo Premium (Wife's)

Follow me on: Twitter Instagram Youtube

Share this post


Link to post
Share on other sites

P0411 Secondary Air Injection (AIR) System Incorrect Flow Detected

Either the AIR pump or the AIR solenoid (or relay) is not switching on or off on command of the PCM. look for wiring problems first, then check the AIR pump, the AIR solenoid and the AIR relay.


CTS-V_LateralGs_6-2018_tiny.jpg
-- Click Here for CaddyInfo page on "How To" Read Your OBD Codes
-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data
-- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC
Yes, I was Jims_97_ETC before I changed cars.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.