WABCO ABS Maintenance Manual page 61

6S/6M Universal ECU with RSC and Optional Front Axle Brake (6S/4M and 4S/4M Configurations are also
available)
Figure 6.9
INLET INLET
3 2
VALVE VALVE
OUTLET OUTLET
6 5
VALVE
VALVE
OUTLET INLET
9 8
VALVE
VALVE
X2
12 11
SENSOR SENSOR
SENSOR 15 14
SENSOR
18 17
SENSOR SENSOR
BACK VIEW OF HARNESS CONNECTOR
INLET
3 SENSOR 2
VALVE
OUTLET
6 5
SENSOR
VALVE
X3 NOT TRL
9 8
USED ABV-
INLET
11
12
SENSOR
VALVE
OUTLET
15 14
SENSOR
VALVE
BACK VIEW OF HARNESS CONNECTOR
SAE
3 2
J1939 TR-WL
H
ATC 6 5
ABS
X1
GND 9 BAT 8
SAE
11
JUMPER
J1587
A
ABS
3RD
15 14
LAMP BRK
BACK VIEW OF HARNESS CONNECTOR
Momentary Switch
Optional Equipment
Twisted Pair = TP
All unmarked wires should be 16 or 18 AWG.
All fuses should be blade type.
*All connected to a common star ground.
Figure 6.9
1
INLET
VALVE
INLET
1
VALVE
4
OUTLET
VALVE
3
INLET
VALVE
OUTLET 6
OUTLET
4
VALVE
VALVE
2
INLET
VALVE
5
OUTLET
VALVE
7
ABV-
7
ABV-
8
INLET
VALVE
9
OUTLET
VALVE
10
SENSOR
SENSOR 10
SENSOR 13
SENSOR 11
SENSOR 14
13
SENSOR
SENSOR 12
SENSOR 15
ABV+ 16
16 SENSOR 17
ABV+
SENSOR 18
AUX 1 1
TRL ABV- 8
4
AUX 2
TRL ABV+ 13
NOT USED 9
SENSOR 2
AUX 3 7
SENSOR 5
INLET 3
10
OUTLET 6
AUX 4
SENSOR 11
SENSOR 14
TRL
13
INLET 12
ABV+
OUTLET 15
J1587 B 10
J1587 A 11
SAE
J1939 L 1
1
J1939
L
J1939 H
3
BATTERY 8
ECU+ 7
4
ECU-
RETARDER 14
TRAILER 2
ECU+ 7
INDICATOR
LAMP
13
ATC LAMP
TRACTOR INDICATOR LAMP
SAE
15
TRACTOR
10
J1587
INDICATOR
B
LAMP
6
ATC SWITCH
5
ABS OFF
ATC
13
LAMP
ROAD
4
ECU-
9
GND
6 Wiring Diagrams and Connectors
IV
1
RIGHT FRONT
16 AWG
GND
ABS VALVE
4
OV
IV
3
LEFT FRONT
16 AWG GND
ABS VALVE
6 OV
2 IV
LEFT REAR
16 AWG GND
ABS VALVE
5
OV
8 IV
RIGHT REAR
16 AWG GND
ABS VALVE
9
OV
TP
10
RIGHT FRONT
SENSOR
13
TP
11
LEFT REAR
SENSOR
14
TP
12
LEFT FRONT
SENSOR
15
TP
17
RIGHT REAR
SENSOR
18
8
TRAILER ABV
13
2
3RD AXLE
LEFT SENSOR
5
3 IV
3RD AXLE
16 AWG GND
LEFT ABS VALVE
OV
6
11
3RD AXLE
RIGHT SENSOR
14
12 IV
3RD AXLE
16 AWG
GND
RIGHT ABS VALVE
15 OV
TP
10
11
TP
1
3
14 AWG 15A AMP
8
5 AMP
14 AWG 7
86 30
RETARDER
87 87A
85
14
TRAILER INDICATOR LAMP
2
ATC/RSC LAMP
13
15
BLINK CODE
SWITCH
ATC
SWITCH
ABS OFF ROAD SWITCH
4
9
GND*
WABCO Maintenance Manual MM-0112 (Revised 07-18)
FRONT AXLE BRAKE (OPTIONAL)
16
GND
13
7
10
1
3
2
5
4
GND
11
PRESSURE SENSOR
p
14
POWER
U
8
9
REAR
12
ABV
6
15
17
18
X4
X3
X2
X1
J1587 B
J1587 A
J1939 L
J1939 H
BAT
IGN
4004030k
X4
57