EXCEL SYSTEM TROUBLESHOOTING: WITH
POWERDRIVE CHARGER
Troubleshooting
13
TROUBLESHOOTING GUIDE 2
TROUBLESHOOTING GUIDE 2
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION
Batteries – Batteries discharged
Charge batteries
Batteries – Battery connections
Check vehicle wiring.
Battery charger is connected to the vehicle
– Solenoid lockout feature has disabled the
vehicle
Disconnect the battery charger from the
vehicle
Onboard computer failure
Test Procedure 2 – Onboard Computer
Solenoid Lockout Circuit on page 13-15
Key switch and MCOR3 limit switch circuit
Check for loose or disconnected wires at key
switch and MCOR
Failed key switch
Test Procedure 8 – Key Switch and MCOR3
Limit Switch Circuit on page 13-20
Failed MCOR
Test Procedure 8 – Key Switch and MCOR3
Limit Switch Circuit on page 13-20. See also
Test Procedure 4 – MCOR3 Voltage on page
Forward/Reverse rocker switch
Test Procedure 23 – Forward/Reverse Rocker
Solenoid – loose wires
Test Procedure 3 – Solenoid Activating Coil
Solenoid – failed coil
Test Procedure 3 – Solenoid Activating Coil
Speed controller thermal cutback
Allow controller to cool and ensure that vehicle
is not over-loaded before returning to operation
16-pin connector at speed controller
Check for loose or disconnected wires at the
16-pin connector.
See also Test Procedure 9
– 16-Pin Connector on page 13-22.
High pedal detect
Cycle accelerator pedal
Motor stall
Cycle accelerator pedal
Motor Failure
See Section 17 – Motor (Model EJ8-4001A):
Speed controller failure
Replace speed controller.
Controller Removal on page 14-12.
Motor – Motor connections
Check for loose or disconnected wires
Vehicle does not operate
Speed controller – Motor and power
connections
Check for loose or disconnected wires
TABLE CONTINUED ON NEXT PAGE
2014 Precedent
®
Golf Car Maintenance and Service Manual
Page 13-11
Summary of Contents for Precedent 2014
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