Cushman HAULER 800 2012 Technician's Repair And Service Manual page 92

ELECTRONIC SPEED CONTROL - HAULER 1000
Read all of Section B and this section before attempting any procedure. Pay particular attention to all Notices, Cautions, Dangers and Warnings.
B
All tests are to be performed with the negative lead of the DVOM connected to the negative side
of battery pack voltage.
The positive lead of the DVOM is used to probe the controller/battery connections. Leave connections
plugged in the controller
Verify the Battery Reference Voltage at the main battery pack leads. (should be around 48 volts in
8 battery applications) All pin connector checks are performed with the key 'ON' and the 'Tow/Maintenance'
switch in the RUN position
Make certain all pin connections are firmly seated.
Pin number
J1-1
J1-2
J1-3
J1-4
J1-5
J1-6
J1-7
J1-8
J1-9
J1-10
J1-11
J1-12
J1-13
J1-15
J1-17
J1-19
J1-20
J1-23
J1-24
Page F-26
.
If not/ Then
Voltage
BRV Verify key switch, wiring connections, and pin 12 voltage.
BRV Verify reed switch, tow switch, and wiring connections
BRV Verify tow switch and aux power wiring
BRV Verify aux power voltage and wire condition.
BRV Verify wiring. Possible controller failure.
BRV Verify accelerator micro, wiring, and pin 8 voltage.
BRV Verify wire connections. Possible controller failure.
BRV Verify wiring. Possible faulty controller.
Performance option plug wiring. No need to check.
BRV Verify direction selector and wiring.
BRV Verify direction selector and wiring.
BRV Verify wiring. Possible faulty controller.
1-3.5 volts ITS output. Verify wiring and ITS field. Measured with pedal up to
wide open throttle.
16 - 17 volts ITS input voltage. If low voltage is observed, unplug from field. If
voltage comes up, replace the ITS field. If voltage remains low,
replace the controller
BRV BRV will be observed until solenoid engages. BRV will diminish to
around 0 volts to engage solenoid. If not, verify wiring. Possible
faulty controller or shorted solenoid.
BRV BRV will be observed until vehicle is placed in the reverse
direction. BRV will diminish to 0 - 4 volts. Operates reverse alarm.
If not, verify wiring. Possible faulty controller.
Performance option plug wiring. No need to check.
Performance option plug wiring. No need to check.
Performance option plug wiring. No need to check.
Fig. 24 J-1 Pin Connector Diagnostics (Continued)
Repair and Service Manual