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DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
TRACTION
DESCRIPTION OF STATUS
STATUS CODE
Capacitor volts are low before the line
-51
contactor closes.
MEMORY RECALL
NO
SYMPTOM
Line contactor does not close when
Circuits valid
capacitor does not pre-charge.
for
Traction
POSSIBLE CAUSE
Controller
Defective control fuse.
•=
Defective control.
•=
TRACTION
DESCRIPTION OF STATUS
STATUS CODE
Controller "motor current sensor" input
-57
is too low during running.
MEMORY RECALL
YES
SYMPTOM
Control will not operate.
Circuits valid
for
POSSIBLE CAUSE
Traction
Defective control.
Controller
•=
Line contactor tips bounce or are not
fully picked up.
CORRECTIVE ACTIONS
Check control fuse for open circuit
condition. Replace fuse, if
necessary.
Replace controller unit.
CORRECTIVE ACTIONS
Replace controller unit.
CAUSE OF STATUS INDICATION
This status code will be displayed during "key on"
when the capacitor volts is less than 85% of battery
volts at initial key switch on.
TROUBLE-SHOOTING DIAGRAM
FU3 *
10A
LINE *
FU1 *
400A
+
POS
POWER CONNECTIONS
-
NEG
CAUSE OF STATUS INDICATION
This status code will be displayed when the voltage
input from the current sensor is too low (less than
1.0V, 416 amps) during running.
TROUBLE-SHOOTING DIAGRAM
NO GRAPHIC FOR THIS
STATUS CODE
Page 26
A1
F1
A1
A1
F1
TO CONTROL
F2
A2
A2
F2
A2
July 2002
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