DIAGNOSTIC STATUS CODES
IT TRANSISTOR CONTROL
Page
36
November 2005
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 regenerative braking
cycle.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Line contactor closes, then opens and
can only close by opening and closing
the key switch.
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
-82
When armature motor current is greater
than 400 amps for more than 3.5 sec the
armature motor current will be turned off.
This status code will be displayed when the armature motor
current exceeds 400 amps for 3.5 sec and the accelerator
pedal is calling for maximum performance.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
The Control will not operate, and can
only be reset by cycling the key switch.
POSSIBLE CAUSE:
•
Continued operation of vehicle in
high motor current condition
•
Operating control at stall motor
current for more than 3.5 seconds.
•
Function 16 is incorrectly adjusted
for control % on time.
- Adjust function per OEM
instructions
THE PRESENCE OF THIS STATUS CODE
IS NOT NECESSARILY INDICATIVE OF A
CONTROL ISSUE. IF FUNCTION 16 IS
NOT MIS-ADJUSTED, THE STATUS CODE
INDICATES AN APPLICATION ISSUE
WHERE A MOTOR IS BEING STALLED,
ETC. DISPLAY OF THIS STATUS CODE
SHOULD NOT TRIGGER THE RETURN OF
A CONTROL FOR REPAIR OR
REPLACEMENT.