DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL Page 23
July 1999
TRACTION
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-14
The brake switch is open with the
brake pot voltage at some percentage
greater than the brake low learn setting
(the applicable percentage is
determined by function setting).
This status code will be displayed when the brake
switch is open and the brake pot voltage is some
percentage (defined by function setting) greater than
the brake low learn setting.
MEMORY RECALL
NO
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Flashing “-14” status code on the dash display
POSSIBLE CAUSE
Brake pot is mis-adjusted.
Truck brake pads are excessively worn.
Brake switch is mis-adjusted.
KEY
SWITCH
P1
P2
P8
P13
BRAKE POT
P9
BRAKE SW.
P22
TRACTION
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-15
Battery voltage is too low or control
card is mis-adjusted.
This status code will be displayed when the battery
volts are less than 1.95 volts per cell at initial key
switch on. See table below.
MEMORY RECALL
NO
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Discharged battery
•= Check battery for proper open circuit voltage
as shown in “Trouble Shooting Diagram”,
charge battery, if required.
Defective battery
•= Check each battery cell for proper voltage
(greater than 1.95 volts at cell). Replace or
repair battery.
Incorrect control card adjustment.
•= Check Function 15 for proper adjustment for
battery being used. See Handset instruction
sheet for details. Adjust to proper settings.
Check “minimum” battery volts at P1 and NEG.
NEG
+
-
FU3
P1
NOMINAL
BATTERY
VOLTAGE
MINIMUM
LIMIT VOLTS
AT 1.95 VDC
PER CELL
24
80
48
72
36
23.4
78.0
46.8
70.2
35.1
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