DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Page
22
April 1999
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-27
Power supply is less than 10 Volts DC.
This status code will be displayed when the power
supply is less than 10 volts.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Line contactor opens and closes, then can only
be closed by opening and closing the key
switch.
POSSIBLE CAUSE
Discharged Battery
•
=
Check battery to insure proper state of charge.
Voltage may be dropping below 10 Volts DC
under load.
Loose connection at P1.
•
=
Insure that the wire connection at P1 is tight.
Defective control.
•
=
Replace controller unit.
NEG
+
-
FU3
KEY
SWITCH
P1 P2
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-41
Open thermal protector (TP) or
transistor over temperature.
This status code will be displayed when the voltage at
the thermal protector is too high.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Reduced or no power to traction motor in control
range.
POSSIBLE CAUSE
Control is in thermal cut-back.
•
=
Allow control to cool, status code should
disappear.
Defective control.
•
=
Replace controller unit.
NO GRAPHIC FOR THIS
STATUS CODE
