For Internal Office Use Only
9. DIAGNOSIS LED for DRIVE
MODULE
LED shows
Malfunction
Remarks
4 signals
Direction contactor
Do contactors switch and do
stuck
the correct direction selection
signals apply at the drive
control unit?
Check motor connections for
short circuit or contact to
chassis and remedy if required
since chassis has to be free of
potential; Check for leakage
current between battery and
chassis.
Check cable to drive motor;
check carbon brushes; if OK
but error code displayed,
replace the drive module
