Spicer TPCS Troubleshooting Guide - Manual (Page 71)

68
Wire Harness
Electrical Schematic
Electrical Schematic
Note: Schematic is shown for "point- to-point" troubleshoot-
ing only. Actual OEM implementations may vary with
bulkhead connectors, etc.
H3 XDCR COMMON
H1 XDCR SIGNAL
H2 XDCR VREF
15 A FUSE
DASH
LAMPS
ECU Connector
F/A
G/B
J1587
DIAGNOSTIC
B/C
A/E
VEHICLE POWER PANEL
+VBATT
IGNITION
SWITCH SWACC
PNEUMATIC CONTROLLER
B
G
PCU SENSOR
CONFIGURATION
SELECTION
F1 COND SPEED
D2 DRIVE SOL
K2 GROUND
G1 CONFIG 1
D1 STEER SOL
POWER
C2
C3
C1
F2 SPEED
F3 SPEED
GND
J1708A
J1708B
J1708A
J1708B
POWER
9 PIN/6 PIN
GROUND
CONFIG 1
B
C
A
E
A
G2 CONFIG 2
CONFIG 2
K1
SPEED SENSOR INPUT
or
B
A SPEED
SPEED
D3 BUZZER BUZZER OUTPUT (5V, 25mA MAX)
H
B1 SUPPLY SOL
B2 DEFLATE SOL
B3 CONTROL SOL
COND SPEED
BUZZER
GROUND
DEFLATE
STEER
3 CHANNEL SYSTEMS ONLY
DRIVE
E1 TRAILER SOL
K TRAILER
SUPPLY
CONTROL
PRESS SW PRESSURE
SWITCH INPUT
DRIVER
INTERFACE
G3
K3
J3
PRESS SW
GROUND
COMM+
COMM-
GND
POWER
LAMP
CONDITIONED SPEED INPUT
D
B
D
C
A
POWER
GROUND
A
B J1939
COMMUNICATIONS
C
A2 J1939(-)
A1 J1939(+)
J1939 SHIELD
J1939+
J1939-
J1939 SHIELD
COMM+
COMM-
LAMP
B
C
A
F
C
J1 DIMMER
DIMMER DIMMER INPUT (0V= Dim, 12V = Bright)
Note: Not used with DDM.
Note: Actual connector may not be present.
See next page for options OCP or DDM.
Jumper plug may tie each config line to
POWER or GROUND to select config.
See configuration connectors for details.
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