Find here extended description, connector views, and help for diagnostic as well !
Description
- To have a permanent diagnostic connection on the vehicle's side
- Conforms to IP 67 when mated with ECU DIAGN socket and dust cap fitted
- Cable insulation material : PVC
- Dust cap to remain in place if not used
- Required clearance for SOV plug (see technical drawing)
- AM repair kit for side of vehicle socket : 950364818
SOV Framatome socket
| 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 |
DIAGN/CAN plug
| 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
Diagnostic
ISO11898
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.
Before to check on one of the wire, be sure you know the CANbus layout of the vehicle. Depending on the ECUs mounted, you could find splitters and extension cables to link all the network together.
In practice, always start to check the CANbus from one end to main ECU (EB+ or U-ABS), then check again the different cable or splitters separately.
| Test points | Condition | Required value | Mesured value | Comments |
|---|---|---|---|---|
| 1 / 4 | Power ON | B+ |
If the mesured value is below B+, it can indicate a resistance in the wiring Next steps :
|
|
| 2 / 4 | Power ON |
0V < V < 5V |
The average voltage of CAN High wire is around 2.5V Next steps :
|
|
| 3 / 4 | Power ON | 0V < V < 5V |
The average voltage of CAN Low wire is around 2.5V Next steps :
|
