claim
Back to search

Information on diagnostics

OBD and secondary air system

Malfunctions and faults within the secondary air system can be identified using an on-board diagnostic system (OBD). The diagnostic trouble codes P0410, P0411, P0412, P0415, P0413, P0416, P0414, P0417, P0418 and P0419 indicate faults in the secondary air system. You can find out which components are affected by the different diagnostic trouble codes and how you can check them here.

PIERBURG PRODUCTSON-BOARD DIAGNOSTICS
01 Secondary air valve (electrical)06 Engine control unit
02 Secondary air pump (SLP)07 Malfunction indicator lamp (MIL)
03 Lambda sensor08 Diagnostic plug
04 Secondary air valve (pneumatic)09 OBD data scan tool
05 Switchover valve (EUV)

 

FROM PRACTICAL USE

Simple inspection of secondary air valve
Secondary air pump – corroded electrical connections
Condensate in secondary air pump
Pneumatic secondary air valve: Damage caused by condensate

FINDING AND REMEDYING FAULTS

DIAGNOSTIC TROUBLE CODEP0410P0411P0412, P0415
DISPLAYED FAULTSSecondary air system – malfunction
No detection of secondary air by
lambda sensor (no lean signal)		Secondary air system – insufficient
quantity
The secondary air rate detected is too
low (insufficient lean signal)		Secondary air on-off valve A (EUV 1) /
B (EUV 2) electrical fault
The switchover valve (EUV) does not
activate
NEXT STEPS/
POSSIBLE REMEDIES		• Secondary air pump may be
defective. Check SLP, relays, lines
and plug-in connections
• If there is condensate in SLP:
Check the secondary air valve for
tightness and the switchover valve
for functioning
• Check the non-return valve –
replace if soiled
• If there is water in SLP: Check the
vacuum line and valves for tightness		• Check the function of the switchable
non-return valve with vacuum hand
pump
• Check the switchover valve and the
vacuum line
• Check the non-return valve and
secondary air lines for free flow		• Check lines, plug-in connections
and electric switchover valve

 

DIAGNOSTIC TROUBLE CODEP0413, P0416P0414, P0417P0418, P0419
DISPLAYED FAULTSSecondary air on-off valve A (EUV 1) /
B (EUV 2) interruption
The switchover valve (EUV) does not
activate		Secondary air on-off valve A (EUV 1) /
B (EUV 2) short circuit
The switchover valve (EUV) does not
activate		Secondary air system relay circuit A /
circuit B malfunction
Secondary air pump relay A or B does
not activate
NEXT STEPS/
POSSIBLE REMEDIES		• Check lines, plug-in connections
and electric switchover valve		• Actuation of switchover valve
(EUV) not OK
• Check lines, plug-in connections
and electric switchover valve		• Check relays, lines, plug-in
connections and secondary air
pump

 

Keywords :
valve , Secondary air pump , Secondary air valve
Product group :
Secondary air system

This might also interest you

Use of cookies and data protection

Motorservice Group uses cookies saved to your device in order to optimize and continuously improve its websites, as well as for statistical purposes. Further information on our use of cookies can be found here, together with our publication details and data protection notice.

By clicking on “OK” you confirm that you have taken note of the information on cookies, the data protection declaration and the publication details. You can also change your cookie settings for this website at any time.

Privacy settings

We place great importance on transparent information relating to all aspects of data protection. Our website contains detailed information on the settings you can select and what effect these settings have. You can change your selected settings at any time. Regardless of the selection you choose, we will not draw any conclusions regarding you as a person (except where you have explicitly entered your details). For information on deleting the cookies, please see the help function in your browser. You can find out more in the data protection declaration.

Change your privacy settings by clicking on the corresponding buttons

Necessary

Cookies essential for the system ensure that the website works correctly. Without these cookies, malfunctions or error messages may occur.

This website will:

  • Store cookies required by the system
  • Store the settings you make on this website

This site wil never do the following without your agreement:

  • Store your settings, such as the language selection or cookie banner, so that you do not have to repeat them in the future.
  • Evaluate visits anonymously and draw conclusions to help us to optimize our website.
  • Draw conclusions regarding you as a person (except where you have explicitly entered your details, e.g. in contact forms)

Convenience

These cookies make the website easier to use and save settings, for example, so that you do not have to repeat them every time you visit the site.

This website will:

  • Store cookies required by the system
  • Store your settings, such as the language selection or cookie banner, so that you do not have to repeat them in the future.

This site wil never do the following without your agreement:

  • Evaluate visits anonymously and draw conclusions to help us to optimize our website.
  • Draw conclusions regarding you as a person (except where you have explicitly entered your details, e.g. in contact forms)

Statistics

Statistics cookies enable us to evaluate the usage behaviour on the website anonymously – without enabling any conclusions to be drawn about you as a person. This enables us to measure the performance of the website and to improve it continuously to offer a better user experience.

This website will:

  • Store cookies required by the system
  • Draw conclusions regarding you as a person (except where you have explicitly entered your details, e.g. in contact forms)
  • Evaluate visits anonymously and draw conclusions to help us to optimize our website.

This site wil never do the following without your agreement:

  • Draw conclusions regarding you as a person (except where you have explicitly entered your details, e.g. in contact forms)

Of course, we will always respect the do-not-track (DNT) setting in your browser. In this case, no tracking cookies are set and no tracking functions are loaded.