Specifications

28
STATUS CODE
BLANK
DISPLAY
DESCRIPTION
Segments do not illuminate on Dash Display or Handset
No
MEMORY
RECALL
CONTROL
TYPE
STATUS INDICATION CRITERIA
This indicates a lack of input voltage to the logic card
and/or display unit.
STATUS CODE
-01
DESCRIPTION
No seat/deadman switch input.
No
MEMORY
RECALL
STATUS INDICATION CRITERIA
This status code will be displayed when TB3 is less
than 50% battery volts.
Traction
Traction
and Pump
SYMPTOM
Display screen on Dash Display or Handset is blank.
POSSIBLE CAUSE
Positive or negative control voltage is missing.
 Insure that the key switch is closed and voltage is
present between PZ7 and PZ3 control negative , and
that voltage is present between TB4 and PZ3 control
negative.
Open circuit between logic card plug "Y" and Dash Display
or Handset.
 Check for a loose connection or open wire between
logic card plug "Y" and Dash Display or Handset.
Defective Dash Display or Handset
 Replace Dash Display or Handset.
Figure 1
Figure 1
CONTROL
TYPE
SYMPTOM
Forward or reverse contactor will not pick up.
POSSIBLE CAUSE
Mis-adjusted or defective seat switch.
 Check seat switch to insure proper closure.
Open circuit between battery positive TB3.
 Check for loose connections or broken wire
between seat switch and TB3 and between key
switch and positive side of the seat switch and seat
switch to TB4.
 On vehicles without seat switch, check for loose
connections or broken wire from TB4 to TB3.