DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Page
37
January 1999
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-51
Capacitor volts are low before the line
contactor closes.
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.
MEMORY RECALL
NO
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Line contactor does not close when capacitor
does not precharge.
POSSIBLE CAUSE
Defective control fuse.
•
=
Check control fuse for open circuit. Replace
fuse, if necessary.
Defective control.
•
=
Replace controller unit.
POWER CONNECTIONS
LEFT CONTROL
POS
A1
F1
NEG
A2
F2
FIELD
ARMATURE
FU4
A1
A2
S1
S2
SP
+
-
FU1
POWER CONNECTIONS
RIGHT CONTROL
POS
A1
F1
NEG
A2
F2
FIELD
ARMATURE
L
P1 P17
P2 P6
P3
P4
P5
SEAT SW.
START SW.
FORWARD SW.
REVERSE
SW.
P23 P22
P10
P13
S
E
R
IA
L
RE
CE
IV
E
SER
IAL T
R
AN
SM
IT
B
D
I IN
T
E
R
R
U
P
T
P14 P15
I-
MO
TO
R O
U
TP
UT
BR
AKESW
.
STEER PUMP
FIELD
STEER PUMP
ARM
P11 P18
1A OR
SP D
V
R
PLU
G
/R
GN
OU
T
P
U
T
LEFT
CONTROL
(MASTER)
TO PUMP
CONTROL
POSITIVE
TO PUMP CONTROL POSITIVE
LINE
SPEED LIMIT SWITCH
FU3
KEY SWITCH
BRAKE SW.
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-52
Line contactor driver shorted on start
up.
This status code will be displayed when the control
detects a shorted line contactor driver during start up.
MEMORY RECALL
NO
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Defective control.
•
=
Replace controller unit.
NO GRAPHIC FOR THIS
STATUS CODE