
3 Diagnostics, Troubleshooting and Testing
25
Meritor WABCO Maintenance Manual MM-0112 (Revised 05-13)
Figure 3.18
Figure 3.18
4007206a
FRAME MOUNT ECU WITHOUT ESC:
LOOKING INTO WIRE
HARNESS CONNECTOR
FRAME MOUNT ECU WITH ESC:
LOOKING INTO WIRE
HARNESS CONNECTOR
12
3456
710129118
12
3456
710129118
X1-GRAY X2-BLACK
X4-BROWN
(ONLY FOR 6 CHANNEL)
X4-BROWN
(ONLY FOR 6 CHANNEL)
X3-GREEN
12
3456
71012 911 8
123456
710129118
12
3456
710129118
12
3456
710129118
12
3456
710129118
X1-BLACK
X3-GREEN
131618 1517 14
12
3456
71012 911 8
131618 1517 14
X2-GREEN
ECU Modulator Circuit Connector Pins
Frame-Mounted
Non-ESC
LF IV X2-Black 2
LF OV X2-Black 10
LF Common X2-Black 11
RF IV X2-Black 4
RF OV X2-Black 3
RF Common X2-Black 9
LR IV X3-Green 12
LR OV X3-Green 10
LR Common X3-Green 11
RR IV X3-Green 9
RR OV X3-Green 7
RR Common X3-Green 8
LR (3rd Axle) IV X4-Brown 12
LR (3rd Axle) OV X4-Brown 10
LR (3rd Axle) Common X4-Brown 11
RR (3rd Axle) IV X4-Brown 9
RR (3rd Axle) OV X4-Brown 7
RR (3rd Axle) Common X4-Brown 8
Frame-Mounted
With ESC
LF IV X2-Green 2
LF OV X2-Green 15
LF Common X2-Green 14
RF IV X2-Green 4
RF OV X2-Green 3
RF Common X2-Green 16
LR IV X3-Green 12
LR OV X3-Green 10
LR Common X3-Green 11
RR IV X3-Green 9
RR OV X3-Green 7
RR Common X3-Green 8
LR (3rd Axle) IV X4-Brown 12
LR (3rd Axle) OV X4-Brown 10
LR (3rd Axle) Common X4-Brown 11
RR (3rd Axle) IV X4-Brown 9
RR (3rd Axle) OV X4-Brown 7
RR (3rd Axle) Common X4-Brown 8
Optional with
Stability Control
Trailer IV X2-Green 1
Trailer OV X2-Green 10
Trailer Common X2-Green 13
ECU Modulator Circuit Connector Pins
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