If you need to hook up a diagnostic code reader or scanner to your Citroen you will need to know where the diagnostic port is located. Here we have all Citroen diagnostic port pictures which should tell you straight away where to look. A diagnostic port is also known as an OBD2 port or EOBD port which is used for the purpose of communicating with a vehicle to diagnose faults or reprogram modules within the vehicle. The diagnostic port is a direct link to the Citroen ECU.

Citroen DS3
Citroen DS3 Mk1 OBD2 diagnostic port location (2009 -

Citroen C1
Citroen C1 Mk1 OBD2 diagnostic port location (2005 - 2014)
Citroen C1 Mk2 OBD2 diagnostic port location (2014 - 

Citroen C2
Citroen C2 OBD2 diagnostic port location (2003 - 2009)

Citroen C3
Citroen C3 Mk1 OBD2 diagnostic port location (2002 - 2009)
Citroen C3 Mk2 OBD2 diagnostic port location (2009 -

Citroen C4
Citroen C4 Mk1 OBD2 diagnostic port location (2004 - 2010)
Citroen C4 Mk2 OBD2 diagnostic port location (2010 -

Citroen C5
Citroen C5 Mk1 OBD2 diagnostic port location (2001 - 2008)
Citroen C5 Mk2 OBD2 diagnostic port location (2008 -

Citroen Saxo
Citroen Saxo OBD2 diagnostic port location (1996 - 2003)

Citroen Xsara
Citroen Xsara OBD2 diagnostic port location (1996 - 2006)
Citroen Xsara Picasso OBD2 diagnostic port location (1999 - 2010)

Citroen Berlingo
Citroen Berlingo Mk2 OBD2 diagnostic port location (1996 - 2008)
Citroen Berlingo Mk2 OBD2 diagnostic port location (2008 -