DIAGNOSTIC STATUS CODES
IT TRANSISTOR CONTROL
Page
26
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-23
Motor field current is high on start up in
the reverse direction.
This status code will be displayed when the offset
voltage is too high at start up in the reverse direction.
MEMORY RECALL
NO
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Defective control.
•
Replace controller unit.
FU5
KEY SWITCH
L
SEAT
SW
./
CH
A
R
G
E
R
ST
AR
T SW
.
F
O
RWA
RD S
W
.
R
EVER
SE SW
.
BRAKE SW.
B
SW
1
SW
2
P1
P17
P2 P6
P9
P3
P7
P8
P4
P5
P10
P21
ACC POT
BUZZER
P18
P15
PLUG PY
CONNECTIONS
OSCILLATOR CARD
+5V
NEG
PY11
PY12
P14 P20
TACH
P12
P22
P23
RS
-232
FU1
POWER
CONNECTIONS
POS
A1
F1
NEG
A2
F2
FI
E
L
D
AR
M
ATU
R
E
A2
A1
FU6
LINE
+
-
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-24
Motor field current is high on start up in
the forward direction.
This status code will be displayed when the offset
voltage is too high at start up in the forward direction.
MEMORY RECALL
NO
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Confirm that motor field stud is not
shorted to hydraulic pump hose/tube
assembly.
Defective Control.
•
Replace controller unit.
FU5
KEY SWITCH
L
SEAT
SW
./
CH
A
R
G
E
R
ST
AR
T SW
.
F
O
RWA
RD S
W
.
R
EVER
SE SW
.
BRAKE SW.
B
SW
1
SW
2
P1
P17
P2 P6
P9
P3
P7
P8
P4
P5
P10
P21
ACC POT
BUZZER
P18
P15
PLUG PY
CONNECTIONS
OSCILLATOR CARD
+5V
NEG
PY11
PY12
P14 P20
TACH
P12
P22
P23
RS
-232
FU1
POWER
CONNECTIONS
POS
A1
F1
NEG
A2
F2
FI
E
L
D
AR
M
ATU
R
E
A2
A1
FU6
LINE
+
-
November 2005