DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Page
25
October 2002
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-07
Accelerator input voltage too high on power up
after initial key switch closure.
This status code will be displayed when the
accelerator input voltage at P7 is higher than
4.2 volts.
MEMORY R CALL
E
NO
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate when accelerator pedal is
depressed or status code -07 is displayed then disappears
when the vehicle starts to accelerate.
POSSIBLE CAUSE
Accelerator input mis-adjusted or defective.
·
Input voltage at P7 should be less than 3.7 volts. Adjust
or replace accelerator unit to insure that the voltage at
P7 will vary from 3.5 volts to less than .5 volts when the
pedal is depressed.
Open circuit between battery negative and P7 in
accelerator input circuit.
·
Check for broken wires or loose connections or open
potentiometer / voltage supply.
Short circuit from battery positive to wiring in accelerator
input circuit.
·
Disconnect wire from P7 and measure voltage at wire to
negative. Should be zero volts for potentiometer type
and less than 3.7 volts for solid state type accelerator
input.
P9
P7
ACC POT
NEGATIVE
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-08
Accelerator input voltage too low on power up
after initial key switch closure.
This status code will be displayed when the
accelerator input voltage at P7 is less than
3.0 volts, and any of the following connections
are opened and closed: battery plug or key
switch.
MEMORY R CALL
E
NO
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Accelerator input mis-adjusted or defective.
·
Input voltage at P7 should be more than 3.0 volts.
Adjust or replace accelerator unit to insure that
the voltage at P7 is more than 3.0 volts before
depressing pedal.
Short circuit between battery negative and P7 in
accelerator input circuit.
·
Disconnect wire from P7. Check for short circuit
from wire to battery negative.
Defective Control
·
Disconnect wire from P7. Measure voltage from
P7 to negative. Voltage should be greater than 4.5
volts, if not, replace control.
P9
P7
ACC POT
NEGATIVE
