Jump to content
CaddyInfo Cadillac Forum

AIR pump

Recommended Posts

Need advice. I guess i am slightly obsessed but i broke down and spent the money to replace my AIR pump on my 2003 SLS (with conversion). I plan on keeping the car for years so for me it was worth it. The pump is working and the service light is no longer on 24-7. problem, every three or four days the service light comes on and i still get the 1000 and the 0410. I am not the most gifted mechanic but can someone explain how i can troubleshoot the solenoids? It seems to me i get the codes when the system is in checking itself and i get an intermittent fail status which kicks on the codes. i reset them when i finish my drive then three or four days later they come back on. more of an annoyance than anything.

Link to comment
Share on other sites

B1000 ECU Malfunction
U1000 Class 2 Communication Malfunction
P0140 Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 2

I'm afraid that I don't know what codes your car is throwing. If you read them from the DIC using the procedure linked to in my signature block, you will get codes of the general form


where the first three letter are an ancronym for the module that threw the code, Pnnnn is the code (the letter is one of P[owertrain], C[hassis], B[ody], or U[figgerouthisacrynymitmeansnetwork] and the suffix CURRENT or HISTORY tells whether the problem is currently detected or not. Please post the whole code here. If you have a network code, we need to know which module threw that code.

-- 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.

Link to comment
Share on other sites

IIRC. THe P0410 covers a broad range of problems.

I have had issues with GMs and this code

If you hook up a scantool it may give you a letter on the end of the code that may help you narrow it down.

The air system works with the o2 sensors, 2 diversion valves, piping to the manifolds. Any of the 3 can cause this code.

Common problems are ,

Diverter valves stick or fail

Piping into the manifolds can become plugged.

If water was ingested by the pump it could have damaged the valves.

When the pump gets replaced it is recommended to replace the valves, and solenoid to prevent the new parts from being recontaminated


Nice, clean, luxury= fine automobile

Link to comment
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.

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.
  • Create New...