EXPORT POWERDRIVE CHARGER (ONBOARD)
Troubleshooting
Page 4-10
2008 Export Battery Charger Maintenance and Service Manual
4
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 4-17
Charger output is low
One diode failed
Test Procedure 4A – Single Diode Failure
on page 4-16
Transformer coil short-circuit failure
Test Procedure 6 – Transformer on
page 4-19
Onboard computer malfunction
Test Procedure 2 – Control Board on
page 4-13
Charger turns off too soon
AC power supply was shut off
Test Procedure 3 – AC Power and
Continuity Check of AC Circuit on
page 4-15
Onboard computer malfunction
Test Procedure 2 – Control Board on
page 4-13
Batteries may be fully charged
Test Procedure 7 – Battery State of
Charge Test on page 4-20
Charger goes to 16 hour time out
Onboard computer malfunction
Test Procedure 2 – Control Board on
page 4-13
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 4-21
Failed transformer or voltage switch
Test Procedure 6 – Transformer on
page 4-19
Incorrect AC voltage selector switch
position
Check switch position for proper incoming
AC voltage selection
Battery warning light illuminates for
ten seconds at four second intervals
(25 seconds, at 10 second intervals for
Precedent vehicles)
AC power interrupted
Test Procedure 3 – AC Power and
Continuity Check of AC Circuit on
page 4-15
Onboard computer malfunction
Test Procedure 2 – Control Board on
page 4-13
Charger failure
See Testing Charger Operation on
page 4-6
16 hour time out
See Battery Warning Light on page 4-2
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
EXPORT POWERDRIVE ONBOARD BATTERY CHARGER TROUBLESHOOTING
GUIDE
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION