DIN to DIAGN/CAN

Find here extended description, connector views, and help for diagnostic as well !

Description

  • To connect 3rd party CAN products (telematic systems, active steering axles) to the DIAGN/CAN socket of the ECU.
  • Conforms to IP67 when mated with plug DIN72585 style connector and ECU DIAGN socket
  • Cable insulation material: PVC

DIN 72585 Bayonet plug

DIN 72585 plug.png

Pin Description Color Section (mm2)
1 B+ Red 0.75
2 B- Blue 0.75
3 CAN High Green 0.75
4 CAN Low Yellow 0.75

Diagnostic

ISO11898 - DIN plug only !

The Haldex Can Bus uses 4 wires, 2 are for power supply, 2 for the communication (CAN High and CAN Low)

It can be used for ECU extensions, diagnostic or telematic.

 

The main use with 3rd party devices, is communication purpose. Only communication wires and B- may be used in this case : you can check if ECU CAN High/Low average voltage is Ok, and also B- on the DIN connector. 

Some other devices may only use B+/B- on this connector.

 

Test points Condition Required value Mesured value Comments

DIN plug

1 / 2

Power ON  B+  

If the mesured value is below B+, it can indicate a resistance in the wiring

Next steps :

  • check for oxidation marks in the connectors
  • check the continuity of the wires with ohmmeter (R<5Ω for correct operation)

DIN plug

3 / 2

Power ON

0V < V < 5V

 

The average voltage of CAN High wire is around 2.5V

Next steps :

  • check for oxidation marks in the connectors
  • check the continuity of the wires with ohmmeter (R<5Ω for correct operation)

DIN plug

4 / 2

Power ON  0V < V < 5V  

The average voltage of CAN Low wire is around 2.5V

Next steps :

  • check for oxidation marks in the connectors
  • check the continuity of the wires with ohmmeter (R<5Ω for correct operation)

DIAGN/CAN plug

Can Plug ok.png

Pin Description Color Section (mm2)
1 B+ Red 0.75
2 CAN High Green 0.75
3 CAN Low Yellow 0.75
4 B- Blue 0.75

 "A" indicate the clip side