User's Manual
53
Troubleshooting: Wiring Schematic B (Alternate)
Use the wiring schematic on this
page for the following Electronic
Control Unit (ECU) part number:
K105303R000
See the previous page for a
second list of ECU part numbers.
If your ECU part number does
not appear on either list, please
call 1‑800‑AIR‑BRAKE, option 2,
and speak with the Tech Team.
FIGURE 24 - CAB WIRING SCHEMATIC FOR ECU LISTED ABOVE
16
16
3
4
20 ADDITIONAL AXLE WSS AND PMV INSTALLED PER EC-80 CONFIGURATION (6S/4M, 6S/6M).
21. ABS/ESP/TRAILER LAMP VIA J1939.
22. NO ABS OFF ROAD SWITCH. ABS OFF ROAD ACTIVATED WITH ATC MUD AND SNOW.
9
19 CAN SENSOR WIRING - 18 AWG (FOUR CONDUCTOR TWISTED WIRE REQUIRED).
HSA
DISABLE
SWITCH
5A
16
ATC
LAMP
1. RETARDER CONTROL VIA SAE J1939.
2 DIAGNOSTICS VIA SAE J1939.
3 MOMENTARY SWITCH.
4 ATC ENGINE CONTROL PER SAE J1939.
5 PRESSURE MODULATOR VALVE (PMV): BENDIX M-32, M-32QR, M-40X.
7 WHEEL SPEED SENSOR (WSS): BENDIX WS-24.
9 TRACTION CONTROL VALVE (TCV).
10 SERIAL COMMUNICATIONS - 18 AWG (TWISTED PAIR REQUIRED).
NOTES:
AA
8
19
CAN HI 2
CAN LO 2
J1939_LO
J1939_HI
BATTERY
ATC IND
GROUND
ADDITIONAL AXLE
20
11
16 TPMS WIRING - 3 WIRES.
17 POLE
18 POLE
15 POLE
WSS
DRIVE
AXLE
RIGHT
WSS
DRIVE
AXLE
LEFT
WSS
STEER
AXLE
RIGHT
IGNITION
HSA DISABLE
ATC DIS OR DIAG
SW
TPMS COMM
WSS_DR+
WSS_DR-
WSS_DL+
WSS_DL-
13
14
7
8
16
17
1
3
2
18
9
10
11
15 18
30A
WSS
STEER
AXLE
LEFT
HSA
SOL
PMV_DR_HLD
PMV_DR_REL
PMV_DR_CMN
PMV_DL_HLD
PMV_DL_REL
PMV_DL_CMN
PMV_SR_HLD
PMV_SR_REL
PMV_SR_CMN
PMV_SL_HLD
PMV_SL_REL
PMV_SL_CMN
9
TRACTION
CONTROL
VALV E
TPMS PWR
WSS_SR+
WSS_SR-
WSS_SL+
WSS_SL-
10 13
9
16
17
12
476
12
3
1
11
14
5
8
WSS_AR+
WSS_AR-
WSS_AL+
WSS_AL-
HSA SOLENOID
PMV_AR_HLD
PMV_AR_REL
PMV_AR_CMN
TCV_SA_CMN
TCV_SA
12
15
11 14
2
3
5
8
10
13
9
WSS
ADD
AXLE
RIGHT
WSS
ADD
AXLE
LEFT
6
17. WHEN X1 IS DISCONNECTED FROM ECU, BODY CONTROLLER NEEDS TO ILLUMINATE ABS INDICATOR.
HSA
LAMP
6 PMV CONNECTOR TWIST-LOCK PACKARD
COMMON (CMN) PIN 2 PIN B
HOLD (HLD) PIN 3 PIN C
RELEASE (REL) PIN 1 PIN A
8 WSS WIRING - 18 AWG (TWISTED PAIR REQUIRED).
18
18 STOP LAMP SWITCH INPUT REQUIRED FOR ATC AND ALL-WHEEL DRIVE VEHICLES.
IS PROVIDED VIA STOP LAMP SWITCH VIA J1939 COMMUNICATION.
12
6 6 6
5 5 5
7 7
77
7
15
IND. INTERLOCK
7
2
X2
X2
X3
X3
8
1010
88 8 8
X1
X1
11 DOTTED LINES: SPECIAL FUNCTION (OPTIONS).
X1
X2
X3
15. PRODUCT SPECIFICATION: Y119679 AND Y173755.
14. ALL WIRE IS CONDUCTOR CROSS-SECTION OF 16 AWG, UNLESS OTHERWISE NOTED.
3
21
3
21
3
21
3
21
6
5
5
DRIVE
AXLE
RIGHT
PMV
DRIVE
AXLE
LEFT
PMV
STEER
AXLE
LEFT
PMV
STEER
AXLE
RIGHT
PMV
3
21
ADD
AXLE
RIGHT
PMV
12 BATTERY AND GROUND - 12 AWG.
+12V IGNITION
8-968974-1
8-968973-1
DRIVE AXLE
STEER AXLE
17
12
13. ALL WHEEL DRIVE VEHICLES ONLY. REQUIRES STOP LAMP INPUT (SEE NOTE 18 ).
1718091-1
AMP
CONNECTOR
PART NUMBER
REF. NO.
NUMBER OF
CONTACTS
WIRE HARNESS CONNECTORS
10
8
7
11
3
1
2
4
5
NOT CONNECTED
TRAC
CONTROL
VALV E
(TCV)
TCV_DA
TCV_DA_CMN
54
+12V BATTERY
ADDITIONAL
R
L
VEHICLE 6 X 4
R
L
STEER
SA
DRIVE
DA
TPMS GND
6
X4
X4
12
STEER
AXLE
PS_CMN
PS_SIG 1
PS_SIG 3
PS_SPL
PS_SIG 2
CAN_SEN_LO
CAN_SEN_HI
CAN_SEN_CMN
CAN_SEN_SPL
PMV_AL_HLD
PMV_AL_REL
PMV_AL_CMN
4
7
6
6
3
2 1
5
PRESSURE
SENSOR 1
(PRIMARY
DELIVERY)
PRESSURE
SENSOR 3
(SUSPENSION)
PRESSURE
SENSOR 2
(SECONDARY
DELIVERY)
YAW
RATE
SENSOR
6
X4 12 POLE
8-968972-1
PMV_TR_HLD
PMV_TR_REL
PMV_TR_CMN
6
12
9
3
21
PMV
TRAILER
ADD
AXLE
LEFT
PMV
5
ATC DISABLE
OR
DIAGNOSTIC
SWITCH
ATC
MUD
& SNOW
3
I/0