IQ PLUS CHARGER (ONBOARD)
Troubleshooting
Page 9-8
2008-2011 Domestic Battery Charger Maintenance and Service Manual
9
Relay operates intermittently
Failed charger relay
Test Procedure 8 – Continuity on
page 9-17
Single charger fuse link blows
Diode failed
Test Procedure 4A – Single Diode Failure
on page 9-13
Loose internal fuse connection
Tighten connection
Both charger fuse links blow or
receptacle fuse link blows
Battery is wired in reverse polarity
Check vehicle wiring
DC cord is wired in reverse polarity
Check battery charger wiring
Both diodes failed
Test Procedure 4B – Both Diodes Failed
on page 9-14
Charger output is low
One diode failed
Test Procedure 4A – Single Diode Failure
on page 9-13
Transformer coil short-circuit failure
Test Procedure 6 – Transformer on
page 9-15
Onboard computer malfunction
Test Procedure 2 – Control Board on
page 9-11
Charger turns off too soon
AC power supply was shut off
Test Procedure 3 – AC Power and
Continuity Check of AC Circuit on
page 9-12
Onboard computer malfunction
Test Procedure 2 – Control Board on
page 9-11
Batteries may be fully charged
Test Procedure 7 – Battery State of
Charge Test on page 9-17
Charger goes to 16 hour time out
Onboard computer malfunction
Test Procedure 2 – Control Board on
page 9-11
Extremely discharged batteries or cold
temperature
Recharge batteries
Failed or weak battery
See Batteries section in the appropriate
maintenance and service manual
AC line fuse blows or AC circuit
breaker trips
AC cord is shorted
Test Procedure 8 – Continuity on
page 9-17
Failed transformer
Test Procedure 6 – Transformer on
page 9-15
Incorrect charger wiring
Check battery charger wiring
Battery warning light illuminates for ten
seconds at four second intervals
AC power interrupted
Test Procedure 3 – AC Power and
Continuity Check of AC Circuit on
page 9-12
Onboard computer malfunction
Test Procedure 2 – Control Board on
page 9-11
Charger failure
See Testing Charger Operation on
page 9-6
16 hour time out
See Battery Warning Light on page 9-2
Battery or batteries need to be replaced
See Batteries section in the appropriate
maintenance and service manual
Batteries are getting close to full discharge
capacity
Recharge batteries as soon as possible
IQ PLUS ONBOARD BATTERY CHARGER TROUBLESHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION
Summary of Contents for 2008-2011
Page 2: ......
Page 12: ...Page x 2008 2011 Domestic Battery Charger Maintenance and Service Manual ...
Page 18: ...1 ...
Page 28: ...2 ...
Page 64: ...3 ...
Page 100: ...4 ...
Page 132: ...5 ...
Page 168: ...6 ...
Page 204: ...7 ...
Page 296: ...Club Car R NOTES ...
Page 298: ......
Page 299: ......