Page P-1
Repair and Service Manual
B
B
TROUBLESHOOTING
Read all of Section B and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
ELECTRICAL SYSTEM
For non-PDS vehicles, see Electronic Speed Control Section.
For PDS vehicles, see Electronic Speed Control (PDS) Section.
For PDS vehicles, also use Diagnostic Mode, PDS Fault Codes and Troubleshooting Diagrams.
Condition
Possible Cause
Correction
VEHICLE WILL NOT MOVE
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
Clean, tighten 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(s) loose or separated
Install connector(s) correctly
Faulty motor
Repair or replace motor
Test by checking continuity of field
coils (S1 - S2) and armature (A1 - A2)
Check for continuity of armature to
ground and field coils to ground which
indicates a shorted condition
Faulty ESC system
Test and replace components as
indicated by test procedure
Ignition interlock switch has failed
Replace reed switch
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
