JLG 510AJ Service Manual - Manual (Page 141)

SECTION 3 - CHASSIS AND TURNTABLE
3121181 – JLG Lift – 3-99
DBW Diagnostic Test
The DGC engine control module incorporates a diagnostic test
that may be used to verify proper drive-by-wire throttle actua-
tor operation. This diagnostic test is software selectable
through the EDIS using the ECIPP protocol. This test permits
full-authority operation of an electronic throttle via the throt-
tle command input while the engine is in the “Stopped” state
only. The ECM reverts to normal operation if “Off” state is
selected, ignition voltage is lost, or engine speed is sensed.
To enable the test, go to the DBW page of the EDIS. Set “DBW
test mode” to “Enabled”. Double-click on the “TPS Command”
setting and enter the desired DBW throttle actuator position.
Under normal operation, the throttle actuator should move to
the position entered. To disable the test, set “DBW test mode”
to “Off.”
Figure 3-77. Clear Faults Prompt