Trailer Guide Schémas Logiciels

U-ABS Solenoid link cable

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

Description

  • Tin plated pins (specific for ABS solenoids)
  • Used to connect a 3rd modulator to U-ABS ECU or replace modulator 21/22 cables
  • Conforms to IP67 when mated with U-ABS solenoids and U-ABS ECU
  • Cable insulation material : PVC

DIN solenoid plug

DIN 72585 plug.png

Pin Description Color Section (mm2)
1 DUMP   1.5
2 COMMON   1.5
3 HOLD   1.5
4 Not used - -

AUX plug

AUX plug ok.png

Pin Description Color Section (mm2)
1 DUMP   1.5
2 COMMON   1.5
3 HOLD   1.5

Diagnostic

ABS solenoids have 2 coils, named as DUMP and HOLD, they are used to modulate the control pressure of the ABS relay valves.

The cable use 3 wires, as the ground for both coils are COMMON.

 

Connect DIN plug on the ABS relay valve, disconnect Aux plug on ECU :

Test points Required value Mesured value Comments

Aux plug

1 - 2

12 Ω < R < 20 Ω

Nominal = 16 Ω

  

DUMP solenoid

If the values are out of range, cable or solenoid can be faulty

Next steps :

  • check for oxidation marks in connectors
  • check for solenoid coils resistance
  • check the continuity of the wires 1 and 2 with ohmmeter between the two plugs. (R<5Ω for correct operation)

Aux plug

3 - 2

12 Ω < R < 20 Ω

Nominal = 16 Ω

  

HOLD solenoid

If the values are out of range, cable or solenoid can be faulty

Next steps :

  • check for oxidation marks in connectors
  • check for solenoid coils resistance
  • check the continuity of the wires 1 and 3 with ohmmeter between the two plugs. (R<5Ω for correct operation)
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