POWERDRIVE 3 – MODEL 26580
Troubleshooting
2008-2011 Domestic Battery Charger Maintenance and Service Manual
Page 7-13
7
Use the following Troubleshooting Guide for troubleshooting PowerDrive 3 external battery chargers (model
numbers 26580-11, 26580-18, and 26580-19). The Troubleshooting Guide encompasses the entire battery
charging circuit. Test procedures specified in the Troubleshooting Guide can be found on the following pages.
POWERDRIVE 3 BATTERY CHARGER TROUBLESHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION
Relay does not close, no transformer
hum and ammeter does not move
Batteries disconnected
Connect the batteries.
See Connecting
The Batteries on page 1-4.
Battery voltage is too low
Test Procedure 1 – Battery Voltage and
DC Plug and Receptacle on page 7-16
Poor connection between plug and
receptacle
Test Procedure 1 – Battery Voltage and
DC Plug and Receptacle on page 7-16
DC plug and cord
Test Procedure 1 – Battery Voltage and
DC Plug and Receptacle on page 7-16
and Test Procedure 5 – Charger DC
Circuit Continuity Test on page 7-21
Onboard computer malfunction
Test Procedure 2 – Onboard Computer on
page 7-19
Gray sense lead fuse is blown (not
applicable to Precedent vehicles)
Test Procedure 1 – Battery Voltage and
DC Plug and Receptacle on page 7-16
Receptacle fuse link is blown (not
applicable to Precedent vehicles)
See Electrical Components section in the
appropriate maintenance and service
manual
Poor connection at 10-gauge black wire or
18-gauge gray wire at the OBC
(applicable to Precedent vehicles only)
Check wire connections
Relay closes with an audible click but
no transformer hum and ammeter does
not move
Improper AC outlet voltage
Test Procedure 3 – AC Power and
Continuity Test of AC Circuit on page 7-19
Failed AC plug and cord
Test Procedure 3 – AC Power and
Continuity Test of AC Circuit on page 7-19
Transformer primary coil
Test Procedure 6 – Transformer on
page 7-23
Relay
Test Procedure 8 – Continuity on
page 7-24
Failed ammeter
Replace ammeter
Relay closes and transformer hums but
ammeter does not move
Blown charger fuse
Test Procedure 8 – Continuity on
page 7-24
Failed diodes
Test Procedure 4 – Diodes on page 7-20
Onboard computer malfunction
Test Procedure 2 – Onboard Computer on
page 7-19
Failed transformer
Test Procedure 6 – Transformer on
page 7-23
Relay operates intermittently
Failed charger relay
Test Procedure 8 – Continuity on
page 7-24
Charger fuse link blows or receptacle
fuse link blows
Failed diodes
Test Procedure 4 – Diodes on page 7-20
Loose internal fuse connection
Tighten connection
Battery is wired in reverse polarity
Check vehicle wiring
DC cord is wired in reverse polarity
Check battery charger wiring
Troubleshooting Guide continued on next page...
Summary of Contents for 2008-2011
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