DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL Page 30
September 2004
TRACTION
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-21
The accelerator voltage is too high.
Cycle the key switch off and on to clear
the status code.
This status code will be displayed when the voltage at
P7 is greater than 4.5 volts.
MEMORY RECALL
YES
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate. The key switch must be
turned off and on to clear the status code.
POSSIBLE CAUSE
• Verify wire connection between accelerator
pot to P8
• Verify wire connection between P7 to
accelerator pot
• Verify that the accelerator pot is adjusted
properly
FU3
KEY SWITCH
P7
P1 P2P17 P6 P3 P4
START SW.
FORWARD SW.
ACC POT
L
REVERSE SW.
SEAT SW.
P5
P9
FU5
POWER CONNECTIONS
POS A1 F1
NEG A2 F2
FIELD
ARMATURE
+
-
LINE
FU1
P8
TRACTION
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-23
Motor field current is high on start up in
the reverse direction.
This status code will be displayed when the current
draw in the motor field is too high at start up in the
reverse direction.
MEMORY RECALL
NO
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Defective control.
• Replace controller unit.
NO GRAPHIC FOR THIS
STATUS CODE
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