18
b. If the voltage at the liftgate batteries is below 14.0 volts,
use a voltmeter to monitor the voltage at the liftgate
batteriesfor2–5minutes(seeV5onFigure15).Ifthe
voltage rises, the DC/DC converter is functioning properly;
allow time for the batteries to charge.
If the DC/DC converter is not charging, check the wiring and
connections to the DC/DC converter. If problem continues,
replace the DC/DC converter.
c. Using a clip-on ammeter, measure current flow (see
clip-on ammeter on Figure 15). If above 10.0 amps, the
system is working. Allow time for the liftgate batteries to
charge.
NOTE: If the voltage at the liftgate batteries is above 14.0 volts,
and the batteries are fully charged, the current will taper down
to under 10.0 amps.