Club Car 2008-2011 Maintenance And Service Manual page 214

8
IQ PLUS CHARGER (EXTERNAL)
IQ PLUS BATTERY CHARGER TROUBLESHOOTING GUIDE
SYMPTOM
Relay does not close, no transformer
hum and ammeter does not move
Relay closes with an audible click but
no transformer hum and ammeter does
not move
Relay closes and transformer hums but
ammeter does not move
Relay operates intermittently
Single charger fuse link blows
Both charger fuse links blow or
receptacle fuse link blows
Troubleshooting Guide continued on next page...
Page 8-10 2008-2011 Domestic Battery Charger Maintenance and Service Manual
POSSIBLE CAUSES
Batteries disconnected
Battery voltage is too low
Poor connection between plug and
receptacle
DC plug and cord
Onboard computer malfunction
Gray sense lead fuse is blown
Receptacle fuse link is blown
Poor connection of 10-gauge black wire or
18-gauge gray wire at the onboard
computer
Improper AC outlet voltage
Failed AC plug and cord
Internal AC breaker
Transformer primary coil
Relay
Failed ammeter
Blown charger fuse
Both Diodes failed
Onboard computer malfunction
Failed transformer
Failed charger relay
Diode failed
Loose internal fuse connection
Battery is wired in reverse polarity
DC cord is wired in reverse polarity
Both diodes failed
Troubleshooting
CORRECTIVE ACTION
Connect the batteries. See Connecting
The Batteries on page 1-4.
Test Procedure 1 – Battery Voltage and
DC Plug and Receptacle on page 8-13
Test Procedure 1 – Battery Voltage and
DC Plug and Receptacle on page 8-13
Test Procedure 1 – Battery Voltage and
DC Plug and Receptacle on page 8-13
and Test Procedure 5 – Charger DC
Circuit Continuity Test on page 8-17
Test Procedure 2 – Onboard Computer on
page 8-15
Test Procedure 1 – Battery Voltage and
DC Plug and Receptacle on page 8-13
See Electrical Components section in the
appropriate maintenance and service
manual
Check wire connections
Test Procedure 3 – AC Power and
Continuity Test of AC Circuit on page 8-15
Test Procedure 3 – AC Power and
Continuity Test of AC Circuit on page 8-15
Test Procedure 3 – AC Power and
Continuity Test of AC Circuit on page 8-15
Test Procedure 6 – Transformer on
page 8-18
Test Procedure 8 – Continuity on
page 8-20
Replace ammeter
Test Procedure 4 – Diodes on page 8-16
Test Procedure 4B – Both Diodes Failed
on page 8-17
Test Procedure 2 – Onboard Computer on
page 8-15
Test Procedure 6 – Transformer on
page 8-18
Test Procedure 8 – Continuity on
page 8-20
Test Procedure 4A – Single Diode Failure
on page 8-16
Tighten connection
Check vehicle wiring
Check battery charger wiring
Test Procedure 4B – Both Diodes Failed
on page 8-17