WABCO ESC - 7 SPN, SID, FMI Fault Codes; Diagnostic Trouble Code List

6 Wiring Diagrams and Connectors
63
WABCO Maintenance Manual MM-0112 (Revised 07-18)
4S/4M Frame-mounted ECU with Supervised-Lock-Control (SLC) Feature
Figure 6.15
Figure 6.15
X3-GREEN
SENSOR
RIGHT REAR
TP
TP
SENSOR
LEFT REAR
6 7
5 8
4 9
3 10
2 11
1 12
OUTLET
COMMON
INLET
OUTLET
COMMON
INLET
ABS VALVE
RIGHT REAR
ABS VALVE
LEFT REAR
X4-BROWN
6 7
5 8
4 9
3 10
2 11
1 12
*DIFFERENTIAL
LOCK
11 2
10 3
9 4
8 5
7 6
ABS VALVE
RIGHT FRONT
ABS VALVE
LEFT FRONT
INLET
COMMON
OUTLET
OUTLET
COMMON
INLET
SENSOR
LEFT FRONT
SENSOR
RIGHT FRONT
TP
TP
X2-BLACK
12 1
GND
12V
IGN
15AMP
5AMP
GND
+12V
+12V
GND
GND
12 1
11 2
10 3
9 4
8 5
7 6
TRAILER WL
RETARDER
TP
TP
J1587 -B
J1587 +A
TO RETARDER
TO RETARDER
30
87A
86
85
ATC/RSC LAMP
BLINK CODE
SWITCH
ATC SWITCH
(OPTIONAL)
ABS LAMP
BLINK CODE
86 85
30 87A
87
X1-GRAY
LAMP
14 AWG
14 AWG
14 AWG
14 AWG
J1939 - H
J1939 - L
DCDL
DCTC
TRANSFER CASE
LOCK
*Differential Lock Solenoid is optional in
some vehicles. If you are replacing the ECU
with a Service Kit, please follow carefully
instructions provided on it.
16 AWG
16 AWG
16 AWG
16 AWG
4012053a
+12V IGN
OR BATTERY