Steering System 366Service Manual – CS7000
DTC Error Source Description Check
13 AC Current –
Excessive
The software detected excessive
current ow in the steering actuator
motor circuits.
Actuator - shorted/burned stator
windings.
Wiring (U, V & W) - Shorted to ground
or one another.
Steering Controller - Internal Short
Note: Can also be caused by too low DC
supply voltage on B+.
14 Position
calibration error
The “Center Position” has not been
able to be established. (Not properly
calibrated to right and left travel
limit switches.)
This error occurs when the steering
controller calculated actuator motor
position indicates the mechanism
is beyond a steering travel limit
switch position but the switch has
not indicated that the end has been
reached. (The steering controller
believes that the physical position
of the steered wheel is beyond the
“soft limit” that should have been
indicated by the steering travel
limit switch closing.) This error also
occurs when a steering travel limit
switch closes indicating that the
limit of travel has been reached but
the controller calculated position
indicates that the mechanism should
not be near the limit of travel.
Excessive backlash in steering gears
Controller Conguration
Steering Limit Switches
Steering Limit Switch wiring
15 Steering
Actuator -
Encoder Circuits
Steering Actuator encoder feedback
error.
Wiring - between actuator encoder and
controller
Actuator - Encoder Signals
21 Current
regulator
supervision
Difference between set value and
actual value for current regulator are
above limit.
Obstructions to steering actuator gear
rotation.
Excessive gear backlash
Loose connection in steering actuator
encoder wiring.
Steering Actuator
22 Position
regulator
supervision
Difference between set value and
actual value for position regulator
are above limit.
Obstructions to steering actuator gear
rotation.
Excessive gear backlash
Loose connection in steering actuator
encoder wiring.
Steering Actuator
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