E-Z-GO MPT 800 Technician's Repair And Service Manual

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TROUBLESHOOTING
Page R-1
Repair and Service Manual
Read all of Section B and this section before attempting any procedure. Pay particular attention to all Notes, Cautions and Warnings
ELECTRICAL SYSTEM
Condition Possible Cause Correction
VEHICLE WILL NOT MOVE
(36VOLT VEHICLES)
Refer to Section F (Electronic Speed
Control (48Volt) for 48 Volt vehicles
Key ‘OFF’ or no direction selected Turn key ‘ON’ and select direction
Batteries discharged Charge batteries
Batteries unable to be charged Load test and replace batteries that
cannot be charged
Corroded or loose battery
connections
Clean and tighten battery connections
Apply a coat of commercial terminal
protectant to all terminals
Corroded or loose battery connections
to ESC controller, direction switch or
motor
Repair or replace faulty wiring
Solenoid has failed Replace solenoid
Key switch has failed Replace key switch
Micro switch at direction selector
switch has failed
Replace micro switch
Connector loose or separated Install connector correctly
Faulty motor Repair or replace motor
Faulty ESC system Test and replace components as
indicated by test procedure
Ignition interlock switch has failed Replace reed switch (portable)
Replace relay (on-board charger)
VEHICLE SPEED ERRATIC Faulty ESC system Test and replace components as
indicated by test procedure
NO REDUCED SPEED IN REVERSE Faulty ESC system Test and replace components as
indicated by test procedure
MOTOR NOISY Damaged bearing Replace bearing
Raised commutator bar(s) Replace motor
Loose motor mounting hardware Tighten
BATTERIES WILL NOT CHARGE Charger not functioning correctly Repair or replace charger
Vehicle charging wiring faulty Repair or replace wiring

E-Z-GO MPT 800 Specifications

General

Brand	E-Z-GO
Model	MPT 800
Category	Utility Vehicle
Language	English