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DIAGNOSTIC STATUS CODES
TRANSISTOR PUMP CONTROL Page 47
January 2000
PUMP
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-128
Armature current is too high during the
lift mode.
Status code displayed when the current in the
armature circuit is sustained above 300A for 70 sec.
MEMORY RECALL
YES
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Continued operation of vehicle in high
motor current condition.
•=Operate vehicle at lower motor current
condition for 70 seconds.
FU3
KEY SWITCH
P1 P2
FU2
POWER CONNECTIONS
POS A1
NEG A2
FIELD
ARMATURE
+
-
FU1
LINE
PUMP
STATUS CODE
DESCRIPTION OF
STATUS
CAUSE OF STATUS INDICATION
-141
Open thermal protector (TP1) or
transistor is over temperature.
This status code is displayed when the voltage at the thermal
protector is greater than 0.8 volts.
MEMORY RECALL
NO
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM
Reduced or no power to pump motor in
control range.
POSSIBLE CAUSE
Control is in thermal cut-back.
•=Allow control to cool, status code
should disappear.
POWER
CONNECTIONS
POS A1
NEG A2
FIELD
ARMATURE
+
-
FU1
FU3
KEY SWITCH
P1 P2 P3
P12
LINE
FU6
P19P21
TO
TRACTION
CARD
SPEED LIMIT 1
SPEED LIMIT 2
SPEED LIMIT 3
TO TRACTION
P10 - BDI
PY7
PY12
PY10
PY11