ELECTRIC VEHICLE - TROUBLESHOOTING
AND ELECTRICAL SYSTEM
Troubleshooting
12
TROUBLESHOOTING GUIDE 2
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION
Speed sensor disconnected or failed
Test Procedure 12 – Motor Speed Sensor on
Incorrect speed setting
To change the programmed top speed of the
vehicle, an CDT handset must be used
Wiring – improperly wired
Check vehicle wiring.
Batteries – batteries discharged
Charge batteries
MCOR malfunction
Test Procedure 11 – MCOR Voltage on page
Motor – loose wires
Inspect and tighten all wire connections at the
motor.
Failed motor
Replace motor.
Vehicle is over-loaded
Ensure that vehicle is not over-loaded before
returning to operation.
Speed controller failure
Replace speed controller.
Controller Removal on page 13-12.
Brakes – improperly adjusted
Section 6 — Wheel Brake Assemblies
Vehicle runs slowly
Tires – under-inflated or flat tires
Vehicle operates but has points in pedal
travel where it does not maintain speed nor
accelerate
MCOR malfunction
Test Procedure 11 – MCOR Voltage on page
Vehicle reaches top speed before 100% pedal
travel is reached
Speed controller – failed throttle resistor(s)
Replace speed controller.
Controller Removal on page 13-12.
Wiring – improperly wired
Check vehicle wiring.
Vehicle operates, but motor braking function
does not
Speed sensor disconnected or failed
Test Procedure 12 – Motor Speed Sensor on
Forward/Reverse rocker switch – improperly
wired
Test Procedure 6 – Forward/Reverse Rocker
Motor – improperly wired
Check motor wiring.
Vehicle will run in forward, but not in reverse or
will run in reverse but not forward
Speed controller – improperly wired or failed
speed controller FET
Check vehicle wiring.
Charger interlock failure
Test Procedure 10 – Charger Interlock on page
Battery charger connections – loose plug or
wires at charger, receptacle or batteries
Check wire connections and tighten if
necessary.
Vehicle operates, but battery charger does not
charge batteries
Battery charger
Section 15 — Electric Vehicle - Battery
2020 Precedent,Villager 2 and 4 Maintenance and Service Manual
Page 12-11
Summary of Contents for DS Villager 4
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Page 481: ...GASOLINE ENGINE HARNESS Wiring Diagrams Gasoline Engine Harness 26 ...
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Page 483: ...GASOLINE MAIN HARNESS Wiring Diagrams Gasoline Main Harness 26 ...
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Page 485: ...GASOLINE INSTRUMENT PANEL HARNESS Wiring Diagrams Gasoline Instrument Panel Harness 26 ...
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Page 489: ...ELECTRIC MAIN HARNESS Wiring Diagrams Electric Main Harness 26 ...
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Page 495: ...ELECTRIC LIGHT HARNESS Wiring Diagrams Electric Light Harness 26 ...
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Page 497: ...ELECTRIC DC TO DC CONVERTER HARNESS Wiring Diagrams Electric DC to DC Converter Harness 26 ...
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Page 507: ...NOTES ...
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