Troubleshooting Guide 2 - Club Car Precedent 2004 Maintenance And Service

ELECTRICAL SYSTEM AND TESTING
TROUBLESHOOTING GUIDE 1
SYMPTOM
Test Menu – SPEED PULSES menu
item indicates that speed pulses are
OFF when the vehicle is in motion
or
Diagnostic Menu – SPEED SENSOR
fault code
Test Menu – FOOT INPUT menu item
indicates that the MCOR internal limit
switch is always ON or always OFF.
Test Menu – FORWARD INPUT and/or
REVERSE INPUT does not indicate the
correct reading
or
Diagnostic Menu – PROC/WIRING fault
code
Test Menu – MAIN CONT (solenoid)
does not indicate ON when the
solenoid should be activated.
or
Diagnostic Menu – MAIN CONT DNC
(main contactor (solenoid) did not
close) fault code
Test Menu – KEY INPUT does not
indicate ON when key switch is in the
ON position
Diagnostic Menu – THROTTLE FAULT 1
fault code
Troubleshooting Guide continued on next page...
POSSIBLE CAUSES
Loose or disconnected motor speed
sensor or broken wire
Loose or disconnected 16-pin connector
at speed controller or broken wire
Failed motor speed sensor
Loose or disconnected two-pin connector
at the MCOR or broken wire
Loose or disconnected 16-pin connector
at speed controller or broken wire
Failed MCOR
Loose or disconnected Forward/Reverse
rocker switch (quick disconnect terminals)
or broken wire
Loose or disconnected Forward/Reverse
rocker switch (three-pin connector) or
broken wire
Loose or disconnected 16-pin connector
at speed controller or broken wire
Failed Forward/Reverse rocker switch
Speed controller logic malfunction
Loose, broken, or disconnected wire(s) at
solenoid or B+ speed controller terminal
Loose or disconnected 16-pin connector
at speed controller or broken wire
Failed solenoid
Loose or disconnected wires at key switch
terminals or broken wire
Loose or disconnected 16-pin connector
at speed controller or broken wire
Failed key switch
Loose or disconnected three-pin
connector at the MCOR or broken wire
Loose or disconnected 16-pin connector
at speed controller or broken wire
Failed MCOR
2004 Precedent IQ System Golf Car Maintenance and Service Manual
Troubleshooting
CORRECTIVE ACTION
Repair and/or connect the three-pin
connector to the motor speed sensor
Repair and/or connect the 16-pin
connector to the speed controller
Test Procedure 13 – Motor Speed Sensor
on page 11-38
Repair and/or connect the two-pin
connector to the MCOR
Repair and/or connect the 16-pin
connector to the speed controller
Test Procedure 8 – Key Switch and
MCOR Limit Switch Circuit on page 11-24
Repair and/or connect the quick
disconnect terminals to the Forward/
Reverse switch
Repair and/or connect the three-pin
connector from the Forward/Reverse
switch to the wire harness
Repair and/or connect the 16-pin
connector to the speed controller
Test Procedure 15 – Forward/Reverse
Rocker Switch on page 11-40
Disconnect the batteries and allow the
speed controller capacitors to discharge.
See WARNING "To avoid
unintentionally starting..." in General
Warnings, Section 1, Page 1-2.
Reconnect the batteries and see if the
symptom returns.
Repair and/or connect the loose or
disconnected wire(s)
Repair and/or connect the 16-pin
connector to the speed controller
Replace solenoid. See Solenoid
Removal, Section 12, Page 12-12.
Repair and/or connect the quick
disconnect terminals to the Forward/
Reverse switch
Repair and/or connect the 16-pin
connector to the speed controller
Test Procedure 8 – Key Switch and
MCOR Limit Switch Circuit on page 11-24
Repair and/or connect the three-pin
connector to the MCOR
Repair and/or connect the 16-pin
connector to the speed controller
Test Procedure 4 – MCOR Voltage on
page 11-21
Page 11-13
11