DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Page
33
January 1999
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-30
PMT enable signal from auxiliary
control to master at PL21 is missing
during SRO check. ( Dual Motor
Proportioning Controls Only)
This status code will be displayed when the voltage at
PL21 of the master control is less than 5 volts. This
fault is not stored.
MEMORY RECALL
NO
CORRECTIVE
ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Auxiliary control shut
down
POSSIBLE CAUSE
•
=
Check auxiliary
control for status
codes.
•
=
Verify connection
between PL21 of
master control and
PL10 of
slave/auxiliary control.
P7 P8
P1
P17
P2
P6
P9
P3
P12 P8
P4
P5
P23 P22
P10
P21
P13
ACC POT
STEER
ANGLE POT
S
E
R
IA
L
RE
CE
IV
E
SER
IAL T
R
AN
SM
IT
B
D
I I
N
TE
RRUP
T
P14
BR
AKE SW.
P11 P18
1A OR
SP D
V
R
PL
U
G
/R
GN
OU
T
P
U
T
P7 P12
P6
P2
P1
P3 P4 P5
LEFT
CONTROL
(MASTER)
RIGHT
CONTROL
(SLAVE/
AUXILIARY)
P10
P13
SPEED LIMIT SWITCH
P16
P15
P15
P16
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