DIAGNOSTIC STATUS CODES
IT TRANSISTOR CONTROL
Page
23
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 RECALL
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.
P7
ACC POT
P9
P8
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 RECALL
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.
P7
ACC POT
P9
P8
November 2005
