February 2022
Service Manual
Diagnostics
Part No. 1314708GT
GRC
™
79
GCON I/O MAP
Pin number
Circuit function
I/O Type
Wire color
J1 / QD31 Connector – Gray
J1-1 / QD31-01
Power, ECM
Power Input
Red
J1-2 / QD31-02
Power, PCON
Power Output
Red
J1-3 / QD31-03
Emergency stop, PCON
Power Input
White
J1-4 / QD31-04
CAN High, PCON
Data Bus
Green
J1-5 / QD31-05
CAN Low, PCON
Data Bus
Orange
J1-6 / QD31-06
Ground, PCON
Ground Output
Brown
J1-7 / QD31-07
Ground, ECM
Ground Input
Brown
J1-8 / QD31-08
Key switch, PCON
Digital Input
Black
J1-9 / QD31-09
Key switch, GCON
Digital Input
White
J1-10 / QD31-10
Emergency stop, GCON
Digital Input
White / Black
J1-11 / QD31-11
Contact alarm (if equipped)
Digital Input
Black
J1-12 / QD31-12
Power, ECM Driver
Power Input
Red
J3 / QD32 Connector – Green
J3-1 / QD32-01
Not used
---
---
J3-2 / QD32-02
Alarm, GCON
Digital Output
Blue
J3-3 / QD32-03
Sensor power
Digital Output
Red
J3-4 / QD32-04
Automotive horn
Digital Output
White
J3-5 / QD32-05
Pothole limit switch
Digital Input
Orange / Red
J3-6 / QD32-06
Machine ID
Digital Input
Red
J3-7 / QD32-07
Down limit switch
Digital Input
Orange
J3-8 / QD32-08
level sensor (to serial number GRC15-2343)
Digital Input
Red / Black
J3-9 / QD32-09
Ground
Ground Input
Brown
J3-10 / QD32-10
Ground
Ground Input
Brown
J3-11 / QD32-11
Not used
---
---
J3-12 / QD32-12
Not used
---
---
J2 / QD33 Connector – Black
J2-1 / QD33-01
Platform up coil
Digital Output
Orange
J2-2 / QD33-02
Platform down coil
Digital Output
Orange / Black
J2-3 / QD33-03
Steer left coil
Digital Output
Blue / Black
J2-4 / QD33-04
Steer right coil
Digital Output
Blue
J2-5 / QD33-05
Not used
---
---
J2-6 / QD33-06
Drive forward coil
Digital Output
White
J2-7 / QD33-07
Not used
---
---
J2-8 / QD33-08
Motor controller enable
Digital Output
Green / White
J2-9 / QD33-09
Not used
---
---
J2-10 / QD33-10
Drive reverse coil
Digital Output
White / Black
J2-11 / QD33-11
Motor controller throttle
Analog Output
Green
J2-12 / QD33-12
Not used
---
---
Summary of Contents for Genie GRC-12
Page 113: ...February 2022 Service Manual 101 Electrical Schematic GRC Options...
Page 115: ...February 2022 Service Manual 103 Electrical Schematic GRC from GRC11 1000 to GRC11 1078...
Page 118: ...Service Manual February 2022 106 Electrical Schematic GRC from GRC11 1000 to GRC11 1078...
Page 119: ...February 2022 Service Manual 107 Electrical Schematic GRC from GRC11 1079 to GRC14 1780...
Page 122: ...Service Manual February 2022 110 Electrical Schematic GRC from GRC11 1079 to GRC14 1780...
Page 123: ...February 2022 Service Manual 111 Electrical Schematic GRC from GRC14 1781 to GRC15 2343...
Page 126: ...Service Manual February 2022 114 Electrical Schematic GRC from GRC15 2344 to GRC16P 2481...
Page 127: ...February 2022 Service Manual 115 Electrical Schematic GRC from GRC16P 2482 to GRC16P 2562...
Page 130: ...Service Manual February 2022 118 Electrical Schematic GRC from GRC16P 2563 to GRCP 5999...
Page 131: ...February 2022 Service Manual 119 Hydraulic Schematic GRC from GRC11 1000 to GRC12 1168...
Page 135: ......