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