BENDIX MC-12 MODULATOR CONTROLLER ASSY Manual page 2

Seven Conductor
Pin (Wire Connector
Connector No.)
1 1
2 2
3 3
4 4
5 5
6 6
7 7
4 9
- 8
- 10/11
- 12/13
* Antilock Connector Pin B is an option and is used to provide constant power to the MC-12
The relay illustrated to the right is used when
a tractor, dash mounted status lamp for the
trailer antilock system is desired. Like the
trailer mounted status lamp, this is an option
and is not required.
CI/Directional
Stop & Tail
Stop & Tail
CI/Directional
Rear 7 Pin
Connector
Plug (See
Note:
The rear 7 pin connector plug is for Dolly operations for Doubles & Triples
™
FIGURE 2 - MC-12 MODULATOR TRAILER SYSTEM WIRING SCHEMATIC
2
Antilock
Wire
Letter Color Lamp and Signal Circuits
C White Ground Return To Towing Vehicle
- Black Clearance, Side Marker and Identification Lamps
- Yellow Left Hand Turn Signal and Hazard Signal Lamps
- Red Stop Lamps
- Green Right Hand Turn Signal and Hazard Signal Lamps
- Brown Tail, Clearance, Side Marker and License Plate Lamps
B* Blue Auxiliary, Dome, Etc. or constant Antilock power
A Red Antilock Power From Stop Lamp
D Yellow Trailer Mounted Status Light
N/P - Wheel Speed Sensor
M/L - Wheel Speed Sensor
Marker
Marker
Note)
™
To Pin "G" on
MC-12 ™ Modulator
Connector
To Power Side of
Tractor Ignition
Wheel
Speed
Sensor
Marker
Marker
Wheel
Speed
Sensor
Single/
Dolly Double Triple
12
12
12
10
12
12
12
10
14/16
16/18
16/18
modulator during trailer operation.
Tractor Electrical
Relay
Tractor Dash Mounted
Trailer Antilock Status
Lamp
Trailer
Mounted
Status
Indicator Marker
Marker
Wire Gauge
10 8
12 12
12 12
10 10
12 12
12 12
12 12
10 10
14/16 14/16
16/18 16/18
16/18 16/18
Clearance
Clearance