po403 fault code

Asked by Apr 04, 2015 at 01:01 PM about the 2005 Cadillac CTS 3.6L

Question type: Maintenance & Repair

05 cts fault code po403. what needs fixing.

1 Answer

EGR. exhaust gas recirculation, an emissions device to deduce NoX. http://www.obd-codes.com/p0403

Your Answer

Add photo

Related Questions

  • po403 fault code 1 answer

    05 cts fault code po403. what needs fixing.

    2005 Cadillac CTS 3.6L

    -

    Maintenance & Repair

  • Engine light 6 answers

    I have a 2008 cadillac cts with 55.000 miles and recently the engine light come on and when I took it to auto zone they said the code was the crank sensor and maybe something else added idk.. Al...

    2008 Cadillac CTS Base AWD

    -

    Maintenance & Repair

  • My car shakes a little. .. But only at normal opperating temprature. Why 4 answers

    04 cadillac cts 3.6L v6, i can start it easily and it runs great, but when it idles at opperating temprature it vibrates It will not vibrate when its warming up... Or atleast not noticeably, nor ...

    2004 Cadillac CTS Base

    -

    Maintenance & Repair

  • check engine light on 2 answers

    It gave a code that the injector was bad, so we replaced it and it didnt correct anything. We asked the dealer what could be wrong and they said its the tranny. The car runs rough, like its missin...

    Cadillac CTS

    -

    Maintenance & Repair

  • Car performance

    Please help.. I have a 2008 cadillac cts with 52.000 miles.. The engine light recently came on.. Then went off for a couple of days and now back on..i believe both times it was a couple to few days...

    2008 Cadillac CTS

    -

    Maintenance & Repair

Search Cadillac CTS Questions

Cadillac CTS Experts

#1 Brandon Foster
Brandon Foster
Reputation 1,280
#2 Gaetano Viesti
Gaetano Viesti
Reputation 990
#3 RushIII
RushIII
Reputation 680
View All

Related Models For Sale

Used Cadillac CTS-V
7 Great Deals out of 486 listings starting at $8,998
Used Cadillac SRX
346 Great Deals out of 8,980 listings starting at $1,995
Used Chrysler 300
375 Great Deals out of 17,993 listings starting at $1,000
Used Dodge Charger
532 Great Deals out of 28,515 listings starting at $2,500
Used Cadillac STS
35 Great Deals out of 982 listings starting at $2,500
Used Cadillac DTS
67 Great Deals out of 1,554 listings starting at $1,495
Used Cadillac Escalade
199 Great Deals out of 10,896 listings starting at $2,500
Used Ford Mustang
706 Great Deals out of 44,428 listings starting at $1,500
Used Mercedes-Benz E-Class
407 Great Deals out of 19,396 listings starting at $1,200
Used Mercedes-Benz C-Class
600 Great Deals out of 24,678 listings starting at $1,995
Used BMW 3 Series
1,009 Great Deals out of 31,318 listings starting at $1,000

Used Cars For Sale

2017 Cadillac CTS For Sale
33 Great Deals out of 3,388 listings starting at $30,999
2016 Cadillac CTS For Sale
14 Great Deals out of 776 listings starting at $24,950
2015 Cadillac CTS For Sale
7 Great Deals out of 262 listings starting at $18,300
2014 Cadillac CTS For Sale
36 Great Deals out of 1,552 listings starting at $16,000
2013 Cadillac CTS For Sale
7 Great Deals out of 361 listings starting at $11,990

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.