DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Page
34
October 1998
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-76
Capacitor (1C) voltage too high.
This status code will be displayed when the voltage
on the capacitor goes above limit voltage* during the
regenerative braking cycle.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Line contactor opens and closes, then opens
and can only close by opening and closing the
key switch.
POSSIBLE CAUSE
•
=
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:
Limit Battery Voltage
50V 36V
70V 48V
96V 72//80V
POWER CONNECTIONS
LEFT CONTROL
POS
A1
F1
NEG
A2
F2
FI
E
L
D
AR
M
A
T
U
R
E
FU4
A1
A2
S1
S2
SP
+
-
FU1
POWER CONNECTIONS
RIGHT CONTROL
POS
A1
F1
NEG
A2
F2
L
P9
P7
P8
P1 P17
P2
P6
P19
P3
P12 P20
P4
P5
SEAT
SW.
ST
AR
T
SW.
F
O
R
W
AR
D
SW.
R
EVER
SE SW.
P10
P13
ACC
POT
STEER ANGLE
POT
B
D
I I
N
T
E
RRUP
T
P14 P15
+
1
2
V
FO
R
TA
C
H
S
IG
N
A
L
T
A
C
H
IN
PU
T
SIG
N
AL
ST
EER
PU
M
P
FI
E
L
D
ST
EER
PU
M
P
AR
M
P11 P18
1
A
O
R
SP D
V
R
P
L
U
G
/R
GN
OU
T
P
U
T
LEFT
CONTROL
(MASTER)
T
O
P
U
M
P
CO
NT
RO
L
PO
SIT
IVE
T
O
P
U
M
P
CO
NT
RO
L
PO
SIT
IVE
LINE
PY11 PY12
SERIAL RECEIVE
SERIAL TRANSMIT
BRAKE
POT
FU3
KEY
SWITCH
BRAKE SW.
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-77
Motor current is detected during
regenerative braking.
This status code will be displayed when motoring
current is detected during the regen braking cycle.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Line contactor opens and closes, then opens
and can only close by opening and closing the
key switch.
POSSIBLE CAUSE
Defective control.
•
=
Replace controller unit
POWER CONNECTIONS
LEFT CONTROL
POS
A1
F1
NEG
A2
F2
FI
E
L
D
AR
M
A
T
U
R
E
FU4
A1
A2
S1
S2
SP
+
-
FU1
POWER CONNECTIONS
RIGHT CONTROL
POS
A1
F1
NEG
A2
F2
L
P9
P7
P8
P1 P17
P2
P6
P19
P3
P12 P20
P4
P5
SEAT
SW.
ST
AR
T
SW.
F
O
RW
A
RD S
W
.
R
EVER
SE SW.
P10
P13
ACC
POT
STEER ANGLE
POT
BD
I IN
T
E
R
R
U
PT
P14 P15
+1
2
V
F
O
R T
A
CH S
IG
N
A
L
T
A
C
H
IN
PU
T
SIG
N
AL
ST
EER
PU
M
P
FI
E
L
D
ST
EER
PU
M
P
AR
M
P11 P18
1
A
O
R
SP D
V
R
P
L
U
G
/R
GN
OU
T
P
U
T
LEFT
CONTROL
(MASTER)
T
O
P
U
M
P
CO
NT
RO
L
PO
SIT
IVE
T
O
P
U
M
P
CO
NT
RO
L
PO
SIT
IVE
LINE
PY11 PY12
SERIAL RECEIVE
SERIAL TRANSMIT
BRAKE
POT
FU3
KEY
SWITCH
BRAKE SW.
Section 4.6 TMM Status Codes