User's Manual

P N M L K J H G F E D C B A
P N M L K J H G F E D C B A
N - P 15 -2500 Ohms
L - M 15 -2500 Ohms
SENSOR 2
SENSOR 1
IF THESE LED'S
ARE ILLUMINATED
CHECK THE VEHICLE WIRING HARNESS CONNECTOR
FOR THE PROPER RESISTANCE WITH
STOP LAMP POWER OFF
MC-12 Controller Cable Assembly
MODULATOR
9.5 - 11.5
Ohms
White to White
9.5 - 11.5
Ohms
Black to Black
ECU
CONTROLLER
Replace Controller
P N M L K J H G F E D C B A
A - C 9 to 18 Volts DC
B - C 9 to 18 Volts DC
VOLTAGE
w/STOP
LAMP
POWER
All CONTACT OF THE 14 PIN CONNECTOR ABOVE SHOULD NOT HAVE ANY CONTINUITY
TO THE GROUND CONTACT "C". CONTACTS "A" & "B" ARE POWER TO THE MC-12
BW1959 © Bendix Commercial Vehicl Systems LLC 2/2000
• Printed in USA • All Rights Reserved
A Stop Lamp Power
B Constant Power
C In Cab Status Lamp
D Trailer Status Lamp
E Ground
Most Commonly Encountered Problems That Result In LEDs Being Illuminated.
Repair or Replacement Components As Necessary
• Damaged connectors or wires, caused by dangling or loose wires not properly restrained.
• Power connection not capable of supplying 12 volts at 3 amps because of a poor connection,
bad crimp
• Corroded connectors and connections not properly sealed or seated.
• Terminals not completely latched or sealed into connectors; harness connector bolt not tight.
• Improperly spliced connection repair or repair not sealed properly.
• Excessive sensor air gap, sensor bushing tension or excessive bearing end play.
(Gently push sensor against exciter ring, or readjust bearings)
• Non functioning antilock components, sensor, controller, modulator.
Additional Servicing Tips
• Do not pierce wires with probes when troubleshooting harnesses.
• Gently probe terminals when checking for resistances,
do not deform
contacts
• Apply nonconductive dielectric grease to any and all
connectors if inspecting or disconnecting connectors.
• If excessive cable length is present, bundle and
tie wrap neatly to adjacent air lines or
framing members.
ADDITIONAL INFORMATION:
1-800-247-2725
-2-1
Visit: www.bendix.com
To Controller
Vehicle wire harness
Sensor 2 (yellow)
Sensor 2 (yellow)
Sensor 1 (blue)
Sensor 1 (blue)
Stop Lamp Power
Constant Power
Ground
Trailer Status Lamp
Cab Status Lamp (optional)
Sensor 2
Sensor 2
Sensor 1
Sensor 1
A
B
E
C
D