REV ASeptember 2016 Section 5 • DiagnosticsPart No. 227123 GRC 5 - 3DIAGNOSTICSGCON I/O MAPGroundControlsPin NumberCircuit Function I/O Type Wire Gaugeand ColorQD31 Connector - GrayQD31-01 ECM Power Power Input 14 RDQD31-02 PCON — E-Stop Power Power Output 18 RDQD31-03 PCON — E-Stop Return Power Input 18 WHQD31-04 Link to PCON - CANH Data Bus 18GNQD31-05 Link to PCON - CANL Data Bus 18 ORQD31-06 PCON — Ground Ground Output 18 BNQD31-07 GCON — Ground Ground Input 14 BNQD31-08 Key Switch — PON Mode Digital Input 18 BKQD31-09 Key Switch — GON Mode Digital Input 18 WHQD31-10 GCON — Emergency Stop Digital Input 18 WH/BKQD31-11 No Circuit N/A N/AQD31-12 Driver Power Power Input 14 RDQD32 Connector - GreenQD32-01 No Circuit N/A N/AQD32-02 GCON — Alarm Digital Output 18 BLQD32-03 Switch/Sensor Power Digital Output 14 RDQD32-04 Automotive Horn Digital Output 18 WHQD32-05 Pothole Limit Switch Digital Input 18 OR/RDQD32-06 Machine ID — GR Select Digital Input 18 RDQD32-07 Down Limit Switch Digital Input 18 ORQD32-08 Level Sensor Digital Input 18 RD/BKQD32-09 Ground Ground Input 18 BNQD32-10 Ground Ground Input 18 BNQD32-11 No Circuit N/A N/AQD32-12 No Circuit N/A N/AQD33 Connector - BlackQD33-01 Platform Up Coil Digital Output 18 ORQD33-02 Platform Down Coil Digital Output 18 OR/BKQD33-03 Steer Left Coil Digital Output 18 BL/BKQD33-04 Steer Right Coil Digital Output 18 BLQD33-05 No Circuit N/A N/AQD33-06 Drive Forward Coil Digital Output 18 WHQD33-07 No Circuit N/A N/AQD33-08 Motor Controller Enable Digital Output 18 GN/WHQD33-09 No Circuit N/A N/AQD33-10 Drive Reverse Coil Digital Output 18 WH/BKQD33-11 Motor Controller Throttle Analog Output 18 GNQD33-12 No Circuit N/A N/ARear of Ground Controls ECM