BENDIX SD-13-4834 Manuel D’Utilisation

 A 

B 

C

Make repairs to wiring or replace 
ABS modulator-valve.  Reconnect all 
connectors to the MC-30

™

 controller 

and M-30T

™

 modulator-valve.  Reset 

fault codes by briefl y holding a magnet 
in place at the RESET location of the 
diagnostic display.  Then rerun the 
power up sequence.
Go to Section A.

Turn off power to the MC-30

™

 controller 

and remove the 30-pin connector.

Static ABS Modulator Faults - 
Verify 7.0 to 10.0 OHMS across Hold 
and Common connector pins.  Verify 
7.0 to 10.0 OHMS across Exhaust/
Common connector pins.  Verify 14.0 
to 20.0 OHMS across Exhaust/Hold 
connector pins.  Verify no continuity 
from modulator connector pins to 
ground.  Verify ignition power is not 
measured at any modulator connector 
pins.  Check for corroded or damaged 
modulator wiring and connections.  
If a circuit fault is found, isolate the 
area needing repair by repeating the 
measurements at all connections in 
the ABS modulator circuit.
ABS modulator fault identifi ed?

Dynamic ABS Modulator Faults 
-  Verify proper modulator-valve 
activation with brake pressure applied, 
at power-up (Chuff Test) and/or using 
diagnostic tool.  The wiring to the 
modulator may  be reversed.  Check 
for dragging brakes, dry bearings, 
faulty return springs, parking brake 
system faults, restricted brake air 
lines, over adjusted slacks, out of 
round drums or damaged/loose tone 
rings.

Make repairs to ABS modulator-
valve installation or wheel end.  
Reconnect all connectors to the 
MC-30

™

 controller and M-30T

™

 

modulator-valve.  Reset fault codes 
by briefl y holding a magnet in place at 
the RESET location of the diagnostic 
display.  Then rerun the power up 
sequence. Go to Section A.

J2    Modulator 1 Hold
H3    Modulator 1 Common
J3    Modulator 1 Exhaust

H2    Modulator 2 Hold
J1    Modulator 2 Common
K1    Modulator 2 Exhaust

E1   Ignition 

Power

E3    Brake Light Power
D2   Ground

Hold         Common      Exhaust