6 Appendix II — Wiring Diagrams

44 Meritor WABCO Maintenance Manual MM-0112 (Revised 07-05)

Basic ECU (Cab-mounted)

Figure 6.4

Figure 6.4

BACK VIEW OF HARNESS CONNECTOR

INLETVALVE

INLETVALVE

INLETVALVE

OUTLETVALVE

OUTLETVALVE

OUTLETVALVE

OUTLETVALVE

INLETVALVE 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

CO

NN

EC

TO

R

SENSOR 10

SENSOR 13

SENSOR 11

SENSOR 14

SENSOR 12

SENSOR 15

DIF+ 16

SENSOR 17

SENSOR 18

INLETVALVE

OUTLETVALVE

INLETVALVE

OUTLETVALVE

INLETVALVE

OUTLETVALVE

DIF-

INLETVALVE

OUTLETVALVE

RIGHT FRONTABS VALVE

LEFT FRONTABS VALVE

LEFT REARABS VALVE

RIGHT REARABS VALVE

RIGHT FRONTSENSOR

LEFT REARSENSOR

LEFT FRONTSENSOR

RIGHT REARSENSOR

TP

1

4

3

6

2

5

IV

GND

OV

IV

GND

OV

10

13

11

14

12

15

17

18

IV

GND

OV

IV

GND

OV

8

9

DIFVALVE

1

4

3

6

2

5

7

TP

8

9

TP

TP

16 AWG

16 AWG

16 AWG

16 AWG

GND*BACK VIEW OF HARNESS CONNECTOR

SAEJ1939

HTR-WL

SAEJ1939

L

ATC ABS ECU-

GND BAT ECU+

JUMPERSAE

J1587A

SAEJ1587

B

ABSLAMP

3RDBRK

ATCLAMP

3 2 1

6 5 4

9 8 7

12 11 10

15 14 13

14

PIN

CO

NN

EC

TO

R

TRAILER INDICATOR LAMP

TP1

3

J1939 L

J1939 H

10

11

815A AMP

5A AMP

14 AWG BAT

J1587 B

J1587 A

TP

ATCSWITCH

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

86 30

87

ATC LAMP

TRACTOR INDICATOR LAMP

2

14

13

15

BLINK CODESWITCH

ABS OFF ROAD SWITCH

7

87A

IGN

85

RETARDER

4004027a*All connected to a common star ground.