Model 4700 Maintenance Manual

111J32-2 N POT

Ground to Travel pot (P2) from the VM (J34-2). If not present check VM, wiring, and connections.

112J32-3 VCC Voltage to Travel pot (P2) from VM (J34-5). If not present, check VM, wiring, and connections.

113J32-4 GND Ground to Travel Enable switch (SW8) from the VM (J34-6). If not present, check VM, wiring, and connections. ( Single Pedal Only )

114J32-5 EN. Input from the Travel Enable switch (SW8) to the VM (J34-32). If not present, check switch, wiring, and connections. ( Single Pedal Only )

115J32-6 /EN. Input from the Travel Enable switch (SW8) to the VM (J34-31). If not present check switch, wiring, and connections. ( Single Pedal Only )

116J33-1 GND Ground to Forward Pedal switch (SW4) from the VM (J34-6). If not present, check VM, wiring, and connections.

(Dual Pedal System )

117J33-2 FW Input from the Forward Pedal switch (SW4) to the VM (J34-30). If not present check switch, wiring, and connections.

(Dual Pedal System )

118J33-3 /FW Input from the Forward Pedal switch (SW4) to the VM (J34-20). If not present, check switch, wiring, and connections.

(Dual Pedal System )

119J33-4 GND Ground from the VM (J34-6). If not present, check VM, wiring, and connections.

(Dual Pedal System )

120J33-5 CONFIG.Configuration input to the VM (J34-25). This input allows VM to recognize Dual Pedal. If not present, check jumper, wiring, and connections.

121J33-6 NOT USED

(Dual Pedal System )

Publication 1160093, Issued: 20 May 2013

Section 8.Theory of Operation

Battery voltage wrt BT1+ VMP2

Approx. +10VVMP2

Battery voltage wrt BT1+ VMSW8

Approx. 5V pedal released; 0V pedal depressed

Approx. 0V pedal released; 5V pedal depressed

Battery voltage wrt BT1+

SW8VM

SW8VM

Approx. 5V pedal released; 0V pedal depressed

Approx. 0V pedal released; 5V pedal depressed

Battery voltage wrt BT1+

Approx. 0V w/dual pedals; approx. 5V without dual pedals

Section 8.Theory of Operation

Model 4700 Maintenance Manual

Pinout Matrix Single Traction Motor Trucks >S/N 10676

122J33-7 GND Ground to Reverse Pedal switch (SW5) from the VM (J34-6). If not present, check VM, wiring, and connections.

(Dual Pedal System )

123J33-8 BW Input from the Reverse Pedal switch (SW5) to the VM (J34-19). If not present, check switch, wiring, and connections.

(Dual Pedal System )

124J33-9 /BW Input from the Reverse Pedal switch (SW5) to the VM (J34-18). If not present, check switch, wiring, and connections.

(Dual Pedal System )

Battery voltage wrt BT1+

VMSW5

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

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

SW5VM

125J33-10 thru12NOT USED

126J34-1 TAIL LIGHTOutput from VM to the Tail Lights (LP2 and LP4). If not present, check VM, wiring, and connections.

127J34-2 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.

128J34-3 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).

129J34-4 NOT USED

130J34-5 VCC Voltage to Travel pot (P2). If not present check VM, wiring, and connections.

131J34-6 GND 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).

SW5VM

+24V VMLP2, LP4

Battery voltage wrt BT1+ VMP2

Approx. 2V difference between neutral and pedal depressed

P2VM

Approx. 10V wrt J34-2 VMP2

Battery voltage wrt BT1+

VMSW3 thru 10, 16, 30, PB2, PB3, PB4, PB9, TS1, TS2

Publication 1160093, Issued: 20 May 2013