6 Appendix II — Wiring Diagrams
45
Meritor WABCO Maintenance Manual MM-0112 (Revised 07-05)
6S/6M Universal ECU (Cab-mounted)
Figure 6.5
Figure 6.5
BACK VIEW OF HARNESS CONNECTOR
BACK VIEW OF HARNESS CONNECTOR
SAE
J1939
H
TR-WL
SAE
J1939
L
ATC
ABS ECU-
GND
BAT ECU+
JUMPER
SAE
J1587
A
SAE
J1587
B
ABS
LAMP
3RD
BRK
ATC
LAMP
3
2 1
6
5 4
9
8 7
11 10
15
14 13
14 PIN CONNECTOR
TRAILER INDICATOR LAMP
TP
1
3
J1939 L
J1939 H
10
11
8
15A AMP
10 AMP
14 AWG
BAT
IGN
J1587 B
J1587 A
TP
INLET
VALVE
INLET
VALVE
INLET
VALVE
OUTLET
VALVE
OUTLET
VALVE
OUTLET
VALVE
OUTLET
VALVE
INLET
VALVE
DIF-
SENSOR
SENSOR
SENSOR
SENSOR
SENSOR
SENSOR
3
2 1
6
5 4
9
8 7
12
11 10
15
14 13
SENSOR
SENSOR DIF+
18
17 16
18 PIN CONNECTOR
SENSOR 10
SENSOR 13
SENSOR 11
SENSOR 14
SENSOR 12
SENSOR 15
DIF+ 16
SENSOR 17
SENSOR 18
INLET
VALVE
OUTLET
VALVE
INLET
VALVE
OUTLET
VALVE
INLET
VALVE
OUTLET
VALVE
DIF-
INLET
VALVE
OUTLET
VALVE
RIGHT FRONT
ABS VALVE
LEFT FRONT
ABS VALVE
LEFT REAR
ABS VALVE
RIGHT REAR
ABS VALVE
RIGHT FRONT
SENSOR
LEFT REAR
SENSOR
LEFT FRONT
SENSOR
RIGHT REAR
SENSOR
TP
1
4
3
6
2
5
AT C
SWITCH
IV
GND
OV
IV
GND
OV
10
13
11
14
12
15
17
18
IV
GND
OV
IV
GND
OV
8
9
DIF
VALVE
1
4
3
6
2
5
7
BACK VIEW OF HARNESS CONNECTOR
INLET
VALVE
SENSOR
L1
OUTLET
VALVE
SENSOR
L2
NOT
USED
I/O-OV
L3
INLET
VALVE
SENSOR
L4
OUTLET
VALVE
SENSOR
L5
3
2 1
6
5 4
9
8 7
12
11 10
15
14 13
15 PIN CONNECTOR
3RD AXLE
LEFT SENSOR
NOT USED 9
SENSOR 2
SENSOR 5
INLET 3
OUTLET 6
SENSOR 11
SENSOR 14
INLET 12
OUTLET 15
J1587 B
J1587 A
J1939 L
J1939 H
BATTERY
ECU+
RETARDER
TRAILER
INDICATOR
LAMP
ATC LAMP
TRACTOR
INDICATOR
LAMP
ATC SWITCH
ABS OFF
ROAD
ECU-
GND
10
11
1
3
8
7
14
2
13
15
6
5
4
9
4
9
GND*
ATC LAMP
TRACTOR INDICATOR LAMP
2
13
15
BLINK CODE
SWITCH
ABS OFF ROAD SWITCH
TP
8
9
TP
TP
7
14 AWG
16 AWG
16 AWG
16 AWG
16 AWG
16 AWG
16 AWG
86
30
87
14
87A
85
3RD AXLE
RIGHT SENSOR
3RD AXLE
LEFT ABS VALVE
3RD AXLE
RIGHT ABS VALVE
2
5
IV
GND
OV
IV
GND
OV
3
6
11
14
12
15
RETARDER
4004030a
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