GE SX TRANSISTOR CONTROL IC3645SR4U404N2 Installation And Operation Manual page 39

DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
TRACTION
DESCRIPTION OF STATUS
STATUS CODE
The power steering coil current is too
-69
high during the run mode.
MEMORY RECALL
YES
SYMPTOM
Control will not operate.
Circuits valid
for POSSIBLE CAUSE
=
Traction
=
Controller
If the power steering coil resistance is correct
then:
=
TRACTION
DESCRIPTION OF STATUS
STATUS CODE
Capacitor (1C) voltage too high.
-76
MEMORY RECALL
YES
SYMPTOM
Line contactor opens and closes, then
Circuits valid
opens and can only close by opening
for
and closing the key switch.
Traction
POSSIBLE CAUSE
Controller
=Unplugging the battery connector
during regenerative braking.
=Line contactor bouncing open during
regen.
=Main power fuse opening during
regen.
=Intermittent battery plug connection.
* Limit Voltage:
CORRECTIVE ACTIONS
Shorted power steering control coil
Short between wires connecting to the
power steering coil (wire # 10 and 60)
Defective control. Replace control unit
CORRECTIVE ACTIONS
Limit Batt.
50V 36V
70V 48V
96V 72/80V
CAUSE OF STATUS INDICATION
This status code will be displayed when the current in the
power steering driver circuit exceeds current limit during the
run mode. The control is reset by recycling the key switch.
TROUBLE-SHOOTING DIAGRAM
FU5 KEY SWITCH
P2
SP
P5
TO
ACCESSORIES
P4
FU6
P3
PY7
PY12 P18 P17
P1
OSCILLATOR CARD
PY10
LEFT CONTROL
PY11
FU1
LINE
FU2
+ FU4
A1
P
POS A1 F1
POWER
-
CONNECTIONS
SP
LEFT CONTROL
NEG A2
F2
SP
P
CAUSE OF STATUS INDICATION
This status code will be displayed when the voltage on the
capacitor goes above limit voltage* during the regenerative
braking cycle.
TROUBLE-SHOOTING DIAGRAM
FU5 KEY SWITCH
P2
SP
P5
TO
ACCESSORIES
P4
FU6
P3
PY7
PY12 P18 P17
P1
OSCILLATOR CARD
PY10
LEFT CONTROL
PY11
FU1
LINE
FU2
+ FU4
A1
P
POS A1 F1
POWER
-
CONNECTIONS
SP
LEFT CONTROL
NEG A2
F2
SP
P
Page 39
BRAKE SW.
P1
L
P3 P4 P5
P2 P6
P7 P10 P9 P12 P8
STEER
ANGLE
ACC POT
BDI INTERRUPT
POS A1 F1
POWER
CONNECTIONS
RIGHT CONTROL
NEG A2 F2
BRAKE SW.
P1
L
P3 P4 P5
P2 P6
P7 P10 P9 P12 P8
STEER
ANGLE
ACC POT
BDI INTERRUPT
POS A1 F1
POWER
CONNECTIONS
RIGHT CONTROL
NEG A2 F2
January 2000
POT
POT