DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Page
16
July 2002
Section 4.5 Traction Control Codes
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
NONE
Segments do not illuminate on the
Dash Display and/or the Handset.
No input voltage to the control card or the display unit.
MEMORY RECALL
NO
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Display screen on Dash Display and/or
Handset is blank.
POSSIBLE CAUSE
Positive or negative control voltage is not
present.
•
=
Insure that the key switch is closed and
voltage is present between P1 & battery
negative (Power Terminal “NEG”). Also
check for voltage between P2 and control
negative.
Open circuit between control card Plug Y &
the Dash Display or Handset.
•
=
Check for an open circuit or loose
connection going from the “Y” plug and
the Dash Display or Handset.
Defective Dash Display or Handset.
•
=
Replace Dash Display or Handset.
FU3
KEY
SWITCH
P1
P2
NEG
+
-
CHARGER SWITCH
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-04
Emergency brake switch is open.
This status code will be displayed when P13 is
greater than 2.5 volts.
MEMORY RECALL
NO
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate; buzzer will sound.
POSSIBLE CAUSE
Emergency brake switch input mis-adjusted or
defective.
•
=
Input voltage at P13 should be less than
2.5VDC. Adjust or replace the brake switch to
insure that the voltage at P13 is less than
2.5VDC.
Open circuit between battery negative and P13
in the emergency brake switch input circuit.
•
=
Disconnect wire from P13. Check for open
circuit between this wire and battery negative.
Defective controller.
•
=
Voltage measured between P13 and
negative should be 4.5VDC. If not, replace
control.
L
T
U
R
F
SPEE
D
LI
MI
T
S
W
IT
C
H
*
CHARGER
SWITCH *
KEY
SWITCH
*
ST
AR
T
SW
IT
C
H
*
DIRECTIONAL
SWITCH *
FORW
A
R
D
R
EVER
S
E
B
U
ZZE
R
*
A
CCE
L P
O
T
*
P1
P2
P3
P4
P5
P11 P10
P15
TA
CHO
M
E
TE
R *
P14 P16
P7
P9
P13
P8
P6
RE
D
G
R
EEN
BL
AC
K
PLUG (23 PIN)
E
M
E
R
G
E
NCY
BR
A
KE SW
IT
C
H
*
*
P21
M
O
TO
R THE
R
M
A
L
S
W
IT
CH