Repair manual

Steering and Pitch Control CRT Repair
wc_tx000096gb.fm 64
7.11 Error Code 131 - Left Actuator Fault
7.11.1 Perform a visual inspection of the left actuator wire connections and
associated wiring. Inspect the mechanical parts to make sure no
hardware is loose and the jam nut is tight. If no faults are found
proceed to next step.
7.11.2 Turn ignition switch ON. Watch for movement of the left actuator when
the left joystick is moved to full left and right positions. If there is little
or erratic movement turn ignition switch OFF. Ensure that the jam nut
at the bottom of the actuator cylinder is tight. If the nut is loose it will
have erratic or no movement as the drive barrel will spin on the
threaded rod end. See section Removal and Installation of Electric
Steering Actuators to replace actuator. If the jam nut is tight, proceed
to next step.
7.11.3 Disconnect the wire connector labeled M3 at the actuator. Use a digital
volt/ohm meter to check the actuator motor resistance at the motor
wire connector. The motor resistance should be 0.2-1.0 ohms. If the
reading is higher than 1.0 ohms, replace the actuator motor. If there
was no actuator movement, the jam nut was tight, and the motor
resistance tested correctly, proceed to next step.
7.11.4 Be certain the ignition switch is turned OFF. Connect the black lead of
the digital volt/ohm meter to the battery ground on the right rear frame
of the machine. Set the meter to the DC voltage scale and check the
terminals of the wiring harness side of the M3 connector. The orange
and the black wires should read battery voltage with the ignition switch
OFF. Turn ignition switch ON and check both wires again. With the left
joystick in the centered position, the meter should read 0 VDC.
Connect to the orange wire and move the left joystick to the full
forward, back to center and to full reverse positions. The meter should
read battery voltage when the left joystick is either moved in one
direction but read 0 VDC in the center and opposite direction. Perform
the same test on the black wire; readings should be reversed. Proceed
to next step.
7.11.5 Be certain the ignition switch is turned OFF. Disconnect the motor
connector from the M1 actuator motor. Cut the wire ties so the wiring
harness side of the M1 connector can be connected to the M3 actuator
motor.
Do not connect the M3 wiring harness to the M1 motor at this time!
Doing so can cause irreparable damage to the electronic components
in the steering system!
WARNING