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DIAGNOSTIC STATUS CODES
TRANSISTOR PUMP CONTROL Page 50
January 2000
PUMP
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-146
“Look Ahead” test for T2 volts
less than 12% of battery volts.
This status code will be displayed when the voltage at T2 is
less than 12% of battery volts.
MEMORY RECALL
YES
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM
Pump control will not operate.
POSSIBLE CAUSE
Check for short circuit from the
motor armature to the frame of
the vehicle.
Control is defective.
•=Replace controller unit.
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
PUMP
STATUS
CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-150
Capacitor volts are low after the line
contactor closes.
This status code will be displayed when the capacitor voltage
is less than 85%of the battery voltage in the run mode.
MEMORY
RECALL
YES
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits
valid for
Pump
Controller
SYMPTOM
Pump control will not operate.
POSSIBLE CAUSE
Defective line contactor.
•= Check for open line contactor power
tips.
Check for loose or open connections in
cables from battery positive to control
positive circuit.
Defective power fuse.
•= Check power fuse for open circuit.
No battery voltage at P1.
•= Check for battery voltage at POS and
P1.
•= Check for loose connection at P1.
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