Club Car IQ PLUS 2008, Maintenance And Service Manual Supplement

Page: 24 / 164

ELECTRICAL SYSTEM AND TESTING Troubleshooting
Page 11-10 2008-2011 IQ Plus Electric Vehicle Maintenance and Service Supplement
11
Monitor 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
Speed controller logic malfunction Disconnect the batteries and discharge
the controller.
See Disconnecting The
Batteries on page 10-3. Reconnect the
batteries and see if the symptom returns.
Failed controller FET (that powers up
solenoid coil)
Loose, broken, or disconnected wire(s) at
solenoid or B+ speed controller terminal Repair and/or connect the loose or
disconnected wire(s)
Loose or disconnected 24-pin connector
at speed controller or broken wire Repair and/or connect the 24-pin
connector to the speed controller
Failed solenoid
Replace solenoid. See Solenoid
Removal, Section 13, Page 13-8.
Monitor Menu – KEY INPUT does not
indicate ON when key switch is in the
ON position
Loose or disconnected wires at key switch
terminals or broken wire
Repair and/or connect the quick
disconnect terminals to the Forward/
Reverse switch
Loose or disconnected 24-pin connector
at speed controller or broken wire Repair and/or connect the 24-pin
connector to the speed controller
Failed key switch
Test Procedure 9 – Key Switch and
MCOR Limit Switch Circuit on page 11-23
Diagnostic Menu – THROTTLE FAULT 1
fault code Loose or disconnected three-pin
connector at the MCOR or broken wire Repair and/or connect the three-pin
connector to the MCOR
Loose or disconnected 24-pin connector
at speed controller or broken wire Repair and/or connect the 24-pin
connector to the speed controller
Diagnostic Menu – THROTTLE FAULT 1
fault code, continued
Failed MCOR
Test Procedure 4 – MCOR Voltage on
page 11-18
Diagnostic Menu – HW FAILSAFE
(Hardware Failsafe) fault code Armature drive FET’s (field-effect
transistors) inside speed controller have
failed Replace the speed controller. See Speed
Controller Removal, Section 13,
Page 13-11.
Speed controller logic malfunction
Disconnect the batteries and discharge
the controller.
See Disconnecting The
Batteries on page 10-3. Reconnect the
batteries and see if the symptom returns.
Diagnostic Menu – MAIN WELDED
(main solenoid contacts welded) fault
code
solenoid contacts have failed closed
Replace solenoid. See Solenoid
Removal, Section 13, Page 13-8.
Diagnostic Menu – MAIN DRIVER ON or
MAIN DRIVER OFF fault code
Speed controller logic malfunction
Disconnect the batteries and discharge
the controller.
See Disconnecting The
Batteries on page 10-3. Reconnect the
batteries and see if the symptom returns.
Failure of the FET that controls the
solenoid coil
Replace the speed controller. See Speed
Controller Removal, Section 13,
Page 13-11.
Diagnostic Menu – MAIN COIL FAULT
fault code
or
Diagnostic Menu – MAIN DROPOUT
fault code
Solenoid coil has failed in an open
condition or broken wire to solenoid coil Replace solenoid. See Solenoid
Removal, Section 13, Page 13-8.
Troubleshooting Guide continued on next page...
TROUBLESHOOTING GUIDE 1
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION