Electrical service – Spicer TPCS (Tire Pressure Control System) Service Manual User Manual
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Figure 3 Wiring Harness Diagram
Note: The wiring harness connects all electrical
components of the Tire Pressure Control System.
Figure 3 is a diagram of a wiring harness that shows
the various connectors and their attachment points.
Refer to this figure when performing any of the
following procedures.
Note: See Tire Pressure Control System Trouble-
shooting Guide for a wiring schematic of the Tire
Pressure Control System.
Note: See the Troubleshooting Manual for procedures
on running diagnostics on the Tire Pressure Control
System.
Note: See Section 4: Pneumatic Service for instruc-
tions on replacing the Pneumatic Control Unit, replacing
the Pneumatic Control Unit’s Pressure Transducer, and
replace the Pressure Switch.
1 2
4 5 6
Electronic
Control Unit
Speed
Sensor
Pressure
Switch
Vehicle
Power
Relay
Operator
Control Panel
Pneumatic
Control Unit
Pressure
Transducer
Diagnostic
Config
GND
GND
See Figure 7
Ground
Terminal
A B C D E
F
J K
C
E
G H J
C
E
F G
3
2
1
C
D
B C
D E
F
A
B
A
B
A B C
C
E
A
B
A
B
C
A
B
C
D
E
K
H
G
F