TGA300 Rev180405
28
Figure 5.  TGA 8-Pin Connector Wiring
8-Pin Connector/Cable
Pin  Wire Color  Description 
1  Red    +5 VDC Reference From ECM
2  Black    ECM Ground
3  Orange   Engine Control Signal To ECM
4  White    High-Idle Active Input (+12 VDC)
5  Yellow   FRC Datalink (+)
6  Green    FRC Datalink (–)
7  Blue    Buzzer Ground (300 mA max)
8  Brown    Throttle Enable Signal Output
Note: Not all wires are used for all engines. Refer to the engine 
specic wiring diagram for interface connections.
Rear View
12 and 8 Pin Connectors
Top
USB
Access Port*
Pin 1
Pin 1
Vent
Note: An optional 6-pin connector is installed 
when external sensors are required.
BLU
YEL
GRN
To Ground Side of Buzzer
To Engine Control
(See Engine Specic Wiring)
WHT
High-Idle 
Switch
Refer to High-Idle 
Wiring for details.
RED
BLK
ORN
BRN
FRC Datalink (+)
FRC Datalink (–)
8-Pin 
Connector
To the Secondary 
Controller
Data Bus 
Terminator
Note: The program code P303 must be set to REMOTE on the Secondary Controller control module.
Secondary Controller
12 and 8 Pin Connector Wiring 
+12 VDC
GND
Ignition Key
RED
BLK
To J1939
(See Engine Specic Wiring)
12-Pin 
Connector
NOTE: Terminating resistor 
and adapters are included in the 
kit for connection to the primary 
display; no other wires are 
required for remote operation.
8-Pin 
Connector
YEL
GRN
FRC Datalink (+)
FRC Datalink (–)
To the Primary 
Controller
Data Bus 
Terminator
Secondary Controller, Cables and Connections
*NOTE: If opened, USB access port plug 
must be tightened to a torque of 8-10 in-lbs. 
Exceeding this torque value can result in 
damage to its water seal capability.  
Warning: Flange may not fully bottom out.