Model 4700 Maintenance Manual

Section 8.Theory of Operation

All Dual Traction Motor Trucks and Single Traction Motor Trucks <S/N10677Pinout Matrix

192J33-9 /BW Input from the Reverse Pedal switch (SW5) to the VM (J34-18). If not present, check switch, wiring, and connections. ( Dual Pedal System)

193J33-10 thru12NOT USED

194J34-1 TAIL LIGHTOutput from VM to the Tail Lights (LP2 and LP4). If not present, check VM, wiring, and connections.

195J34-2 N POT

Negative reference for the Travel pot (P2). If this reference is lost or intermittent, the travel pot will not function correctly and possibly will throw codes. If not present, check VM, wiring, and connections.

Approx. 0V pedal released; approx. 5V pedal depressed

SW5VM

+24V VMLP2, LP4

Battery voltage wrt BT1+ VMP2

196J34-3 C POT

Wiper input from the Travel pot (P2). Voltage will vary depending on travel request. The pot may need to be re-learned. If not present, check pot, wiring, and connections. Note: To check pot, unplug connector and measure resistance between pins 2 and 3. Approx. 4.6K ohms should be read (J34-2 to J34-3).

Approx. 2V difference between neutral and pedal depressed

P2VM

197J34-4 NOT USED

198J34-5 VCC

199J34-6 GND

Voltage to Travel pot (P2). If not present check VM, wiring, and connections.

One of the grounds supplied by the VM to multiple components. If ground is not present at this connection check for B– coming into the VM at (J34-7, 8, 10) and (J40-17).

200J34-7 GND B– supply to the VM. This B– is shared by many components prior to and after the VM. If not present, follow back towards B– until loss can be determined.

201J34-8 GND B– supply to the VM. This B– is shared by many components prior to and after the VM. If not present, follow back towards B– until loss can be determined.

Approx. 10V wrt J34-2 VMP2

Battery voltage wrt BT1+ VMSW3 thru 10, 16, 30, PB2, PB3, PB4, PB9, TS1, TS2

Battery voltage wrt BT1+ B– at J1–VM

Battery voltage wrt BT1+ B– at J1–VM

Publication 1160093, Issued: 20 May 2013 8-29

Section 8.Theory of Operation

Model 4700 Maintenance Manual

Pinout MatrixAll Dual Traction Motor Trucks and Single Traction Motor Trucks <S/N10677

202J34-9 HORN OUTOutput from the VM to activate the Horn (HR1 at J11-IN). If not present, check VM, horn push button, and wiring.

203J34-10 GND B– supply to the VM. This B– is shared by many components prior to and after the VM. If not present, follow back towards B– until loss can be determined.

204J34-11 +24V +24V input to VM from DC/DC converter (J96-4). If not present, check converter, wiring, and connections.

205J34-12 +24V CAN+24V output from the VM to Armrest Board (J139-5) and Operator Display (J137-5). If not present, check VM, wiring, and connections.

206J34-13 BRAKE LIGHT+24V output from VM to the Brake Lights (LP1 and LP3) when traveling and changing direction or traveling and pressing brake pedal. If not present, check VM, wiring, and connections.

207J34-14 PARK Input to the VM from Parking Brake switch (SW7 at J30-3). If not present, check switch, wiring, and connections.

208J34-15 BRAKE Input to the VM from the Brake Pedal switch (SW6 at J31-2). If not present, check switch, wiring, and connections.

209J34-16 HORN INInput to VM from Horn switch (PB4 at J8-2). If not present, check horn switch, wiring, and connections.

210J34-17 OIL BRAKEInput to VM from Low Brake Fluid Sensor (SW3). If not present, check switch, wiring, and connections.

211J34-18 /BW

Input to VM from Reverse Pedal switch (SW5 at J33-9). If not present, check switch, wiring, and connections. (Dual Pedal System )

+24V; 0V activated

VMHR1

Battery voltage wrt BT1+ B– at J1–VM

+24V DC/DC Converter VM

+24V VMArmrest Board, OD

+24V VMBrake Lights

Approx. 5V brake set; 0V brake released

Approx. 5V pedal not depressed; approx. 0V pedal depressed

Approx. 5V when switch is open; 0V when switch is activated

Approx. 5V open; 0V switch closed

Approx. 0V open; approx. 5V switch closed

SW7VM

SW6VM

PB4VM

212J34-19 BW

Input to VM from Reverse Hand Direction switch (SW10 at J39-7) or Reverse Foot Pedal switch (SW5 at J33-8). If not present, check switches, wiring, and connections.

Approx. 5V switch open; approx. 0V switch closed

SW3VM

SW5VM

SW5, SW10 VM

Publication 1160093, Issued: 20 May 2013

Model 4700 Maintenance Manual

Section 8.Theory of Operation

All Dual Traction Motor Trucks and Single Traction Motor Trucks <S/N10677Pinout Matrix

213J34-20 /FW Input to VM from Forward Foot Pedal switch (SW4 at J33-3). If not present, check switch, wiring, and connections. ( Dual Pedal System)

214J34-21 CAN L Communication line between VM, Operator Display (J137-1), and CAN-Bus Interface (J132-2).

215J34-22 CAN L Communication line between VM and Armrest Board (J131-1).

216J34-23 CAN L Communication line between VM and TPA ( Dual Traction Motor truck: JAT-6) (Single Traction Motor truck: JT4-1)

217J34-24 +24V +24V input to VM from DC/DC converter (J96-4). If not present, check converter, wiring, and connections.

218J34-25 CONFIGInput to the VM to identify the type of directional controls on the truck (standard Hand Direction Lever or optional Dual Pedal System). If truck has the standard Hand Direction Lever, the input will be high. If the truck has the optional Dual Pedal System, the input will be low.

219J34-26

R-TR.TEMP.SW

Dual Traction Motor TruckInput to VM from Right TM Temp Switch (TS1 at J15-6). When the switch opens, an error code is displayed. If not present, check TS1, associated wiring, and connections.

Approx. 0V switch open; approx. 5V switch closed

SW4VM

N/A VM, ODVM, OD, CAN-Bus Interface

N/A VMArmrest Board

N/A VM, TPAVM, TPA

+24V DC/DC Converter VM

Approx. 5V w/Hand Direction Lever; Approx. 0V w/Dual Pedal System

J33-5VM

220J34-26

PUMP.TEMP.SW

Single Traction Motor TruckInput to VM from PM temperature switch (TS2 at J13-6). When the switch opens, an error code is displayed. If not present, check TS2, associated wiring, and connections.

Approx. 0V when OK; approx. 5V when open (overheated)

Approx. 0V when OK; approx. 5V when open (overheated)

TS1VM

TS2VM

221J34-27

L-TR.TEMP.SW

Dual Traction Motor TruckInput to VM from Left TM Temp Switch (TS2 at J16-6). When the switch opens, an error code is displayed. If not present, check TS2, associated wiring, and connections.

Approx. 0V when OK; approx. 5V when open (overheated)

TS2VM

Publication 1160093, Issued: 20 May 2013 8-31

Section 8.Theory of Operation

Model 4700 Maintenance Manual

Pinout MatrixAll Dual Traction Motor Trucks and Single Traction Motor Trucks <S/N10677

222J34-27 TR.TEMP.SW Single Traction Motor TruckInput to VM from TM temperature switch (TS1 at J15-6). When the switch opens, an error code is displayed. If not present, check TS1, associated wiring, and connections.

223J34-28 L P H

Input to the VM from the LPH switch (PB3 at J36-2). If not present, check switch, wiring, and connections.

224J34-29 SP. RED.Input to VM from the Speed Reduction switch (PB2 at J37-3). If not present, check switch, wiring, and connections.

225J34-30 FW

Input to VM from Forward Hand Direction switch (SW9 at J39-5) or Forward Foot Pedal switch (SW4 at J33-2). If not present, check switches, wiring, and connections.

226J34-31 /EN. Input to the VM from Travel Enable switch (SW8 at J32-6). Used in conjunction with Travel pot (P2) for trucks configured with Hand Direction Lever. If not present, check switch, wiring, and connections.

227J34-32 EN. Input to the VM from Travel Enable switch (SW8 at J32-5). Used in conjunction with Travel pot (P2) for trucks configured with Hand Direction Lever. If not present, check switch, wiring, and connections.

228J34-33 CAN HCommunication line between VM, Operator Display (J137-2), and CAN-Bus Interface (J132-7).

229J34-34 CAN HCommunication line between VM and Fingertip Armrest Board (J131-2).

230J34-35 CAN HCommunication line between VM and TPA ( Dual Traction Motor Truck: JAT-6) ( Single Traction Motor truck: JT4-3)

231J36-1 GND

232J36-2 L P H

Ground to LPH switch (PB3) from the VM (J34-6). If not present, check VM, wiring, and connections.

Provides input to VM (J34-28) from the LPH switch (PB3). If not present, check switch, wiring, and connections.

Approx. 0V when OK; approx. 5V overtemp

TS1VM

Approx. 0V when PB3 closed; approx. 5V open

Approx. 0V when PB2 closed; approx. 5V open

5V switch open; 0V switch closed

PB3VM

PB2VM

SW4, SW9 VM

Approx. 0V w/pedal released; approx. 5V w/pedal depressed

Approx. 5V w/pedal released; approx. 0V w/pedal depressed

N/A

N/A

SW8VM

SW8VM

VM, ODVM, OD, CAN-Bus Interface

VMFingertip Armrest Board

N/A VM, TPAVM, TPA

Battery voltage wrt BT1+ VMPB3

PB3VM

Publication 1160093, Issued: 20 May 2013