GE IC3645SR4U454Z2 - Page 53

DIAGNOSTIC STATUS CODES
TRANSISTOR PUMP CONTROL Page 53
January 1999
PUMP
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-145
Power Transistor (Q1) did not turn on
properly.
This status code is displayed when during pump
control operation, the transistor fails to turn on.
MEMORY RECALL
YES
CORRECTIVE
ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM:
Pump contactor will
open and close, then
open and then can
only be closed by
opening and closing
the key switch.
POSSIBLE CAUSE:
Control is defective.
•=Replace controller
unit.
FU5
KEY SWITCH
P1 P2 P10
P6 P5P16
94 INPUT
94 INPUT
90 INPUT
P13
P11
91 INPUT
BRUSHWEAR OUTPUT - P14
P14
OVER TEMP OUTPUT - P20
P15
92 INPUT
P12
P9
95 INPUT
P8
95 INPUT
FU6
P19
P20
P21P4 P3
93 INPUT 93 INPUT
TO TRACTION
CARD
SPEED LIMIT 1 SPEED LIMIT 2 SPEED LIMIT 3 SPEED LIMIT 4
TO
TRACTION
P10 - BDI
POWER CONNECTIONS
POS A1
NEG A2
FIELD
ARMATURE
LINE
+
-
FU1
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 A2 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.
Defective controller
unit.
•=Replace control.
FU5
KEY SWITCH
P1 P2 P10
P6 P5P16
94 INPUT
94 INPUT
90 INPUT
P13
P11
91 INPUT
BRUSHWEAR OUTPUT - P14
P14
OVER TEMP OUTPUT - P20
P15
92 INPUT
P12
P9
95 INPUT
P8
95 INPUT
FU6
P19
P20
P21P4 P3
93 INPUT 93 INPUT
TO TRACTION
CARD
SPEED LIMIT 1 SPEED LIMIT 2 SPEED LIMIT 3 SPEED LIMIT 4
TO
TRACTION
P10 - BDI
POWER CONNECTIONS
POS A1
NEG A2
FIELD
ARMATURE
LINE
+
-
FU1