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General Maintenance and Diagnostic Data
2. Measure voltage between the diagnostic connec-
tor, socket B and B(-).
NOTE: Key in ON position.
Is voltage approximately 2.5 volts?
YES- Disconnect the battery and proceed Step 3.
NO- Inspect the CAN LO circuit for open or short; If
voltage is 0 volts, the CAN LO circuit is shorted to
B(-) or open. If voltage is above 5 volts, the CAN
LO is shorted to power.
3. Measure resistance between the diagnostic con-
nector, socket A and socket B.
Is resistance 60 ± 6 ohms?
YES- CANbus communication is operating cor-
rectly.
NO- If resistance is 120 ohms; the CANbus has an
open circuit, missing, or damaged termination re-
sistor. If resistance is 0 ohms, the CANbus circuits
are shorted together. If resistance is open; the CAN
HI and/or CAN LO connection to the diagnostic port
may be open. Use the wiring diagrams to detect
and correct open circuit.
Troubleshooting the Tiller Control Card
Termination Resistor
Disconnect all Tiller Control Card connectors and
components.
USER INTERFACE, SETUP, AND
TROUBLESHOOTING
The dash display has a LCD screen for displaying
truck system information. The dash display also con-
tains a battery state-of-charge indicator.
Status Code Indication
This feature indicates if a status code is available. If a
status code is present, the fault code number followed
by the status code description will be displayed. If
other status codes are present, it will display the sub-
sequent status code and description. Two seconds
will lapse between display screens before displaying
the code sequencing.
Check the Service Manual section in Yale Axcess Online for possible updates and check pertinent Bulletins
9030-03-8
1. Measure resistance between the Tiller Control
Card connector CJ2, pin 1 and pin 2.
Is resistance 120 ± 12 ohms?
YES- Reconnect the Tiller Control Card connec-
tors, components, and proceed to Troubleshooting
the Traction Controller Termination Resistor.
NO- Replace Tiller Control Card.
Troubleshooting the Traction Controller
Termination Resistor
Disconnect all Traction Controller connectors, cables,
and components.
1. Measure resistance between the Traction Control-
ler connector CPS01, pin 21 and pin 34.
Is resistance 120 ± 12 ohms?
YES- Reconnect the Traction Controller connec-
tors, cables, components, and proceed to Trouble-
shooting the CANbus.
NO- Replace Traction Controller.
User Interface
PARAMETERS
Utilize the User Interface to access and adjust param-
eters. Not all parameters will be available and will
vary between truck applications.
Speed Steering Reduction
This optional parameter defines the speed reduction
that the motor will target from its current level once
the speed reduction sensor changes from ON to OFF.
If parameter is set at 75%, and the truck was been
driven at 1000 RPM, upon steering the motor will de-
celerate to 750 RPM.
ELECTRICAL SYSTEM
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Troubleshooting
