DVS Fast Charging System
Operation and Maintenance Manual
09910-W-03-02
Page
26 of 27
Webasto Charging Systems, Inc.
FF
This fault indicates a Charger Configuration error. Use the Charger Configuration menu
to clear the ‘Battery Backed RAM’. Reconfigure the Charger and cycle power to the
system. If the fault persists, contact your Authorized DVS/MVS 330 Fast Charging
System Service Provider.
GG
Not used
HH
Not used
II
If the display is intermittent or dark, the display connector may be loose. Open the unit
and inspect the control board to display interface. Check to make sure that all standoffs
on the control board are screwed down firmly to the front panel and are securely holding
the control board at all locations. Correct any problems found with the standoffs and
cycle power to the unit. If this does not correct the problem, replace the door assembly.
Burned out LED’s usually indicate a damaged membrane. Replace the door assembly.
JJ
A power imbalance fault can result from a contactor problem, a loose connection in the
high current path of one channel, a malfunction in the current sensor, or a malfunction on
the control board. Check all connections to the contactors, current sensors and output
connections. If the problem persists, contact your Authorized DVS/MVS 330 Fast
Charging System Service Provider.
KK
If a VBAT MISMATCH error occurs, check the display and observe the voltage. If the
voltage looks correct for the battery, the problem is most likely in the high current path or
the voltage sense path. Check for continuity throughout the high current path from the
power board to the battery in the vehicle. Check that all cables connections are tight and
that all contactors in the path are functioning properly. If the problem persists, contact
your Authorized DVS/MVS 330 Fast Charging System Service Provider.
LL
If the voltage observed on the unit display does not seem appropriate for the battery in
use, the problem is in the BMID. Verify the BMID Configuration is correct for the
battery. If the problem persists the BMID should be replaced. Contact your Authorized
DVS/MVS 330 Fast Charging System Service Provider.
MM
If an invalid pilot signal is indicated, check the pilot signal wiring. If the pilot signal
wiring and connections check out, check the charger with another vehicle to isolate the
problem to either the charger or the vehicle. If the problem goes away when another
vehicle is used, replace the BMID in the vehicle that caused the fault. If the fault persists
when the vehicle is changed, replace the control board in the unit.
NN
Reseat the power stage Temp Sense connectors. Check each heat sink thermistor
(resistance should be greater than 60K ohms). If the problem persists, contact your
Authorized DVS/MVS 330 Fast Charging System Service Provider.
OO
Check the Charger output wiring and connectors. Ensure that all the power and signal
connectors are completely mated, and that there is no physical damage to the connector
or pitting on the contacts that could cause poor connections. If a connector or the
associated wiring is damaged, replace immediately.
