Control System 79Service Manual – CS7000
J2 Pin Wire Circuit Description Value/Condition
19 116 WHT/YEL Detergent Pump (M17) Pulsed voltage is too fast for useful
measurement value
20 157 YEL/ORN Solution Solenoid Valve
Grounds to energize
0.1v when energized
21 160 BLU/VIO Detergent Pump (M18) Pulsed voltage is too fast for useful
measurement value
22 167 BLK/YEL Lamps Common 12v key on
23 169 BRN Head Lamps and Curb Lamp
PWM ground to turn on lights
37v key on and lights off 33.7v key on
headlights on
24 039 ORN/RED Hydraulic Pump Motor
Contactor (K12) Grounds to
energize
0.08v when energized (Hopper Down)
25 047 YEL/BLU Left Brush Motor Contactor
Grounds to energize
0.08v when energized
26 015 WHT/VIO Center Brush Motor Contactor
Grounds to energize
0.08v when energized
27 061 GRA/RED Right Brush Motor Contactor
Grounds to energize
0.08v when energized
28 038 BLU/ORN Hydraulic Pump Motor
Contactor (K11) Grounds to
energize
0.08v when energized (Hopper Up)
29 ---
30 ---
31 ---
32 221 GRA/BLIU Detergent Pump (M18) Pulsed voltage is too fast for useful
measurement value
33 ---
34 054 BLK/WHT VACC6a Power supply from
Aux Relay
0v Key Off 37v Key On (Aux Relay
energized)
35 053 BLK/WHT VACC6b Power supply from
Aux Relay
0v Key Off 37v Key On (Aux Relay
energized)
J3 Connector (Gray)
w
J3 Pin Wire Circuit Description Value/Condition
1 042 VIO/ORN Extended Scrub Pump PWM
ground
Not measured
2 093 RED/YEL Solution Control Pump PWM
ground
37v no ow 27v minimum ow rate 5.6v
maximum ow rate
3 030 BRN/WHT Main Broom Actuator Reversing
polarity driver
37v at rest or when moving down 5.4v
when moving up
4 031 RED/VIO Main Broom Actuator Reversing
polarity driver
37v at rest or when moving up 5.3v when
moving down
5 106 GRA/VIO Side Broom Actuator Reversing
polarity driver
37v at rest or when moving down 0.08v
when moving up
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