JLG 601S ANSI Service Manual - Manual (Page 112)

SECTION 3 - CHASSIS & TURNTABLE
3-72 – JLG Lift – 3120746
145 Adaptive Learn High (Natural Gas) This fault will set if the adaptive multiplier exceeds the limits of normal
operation.
146 Adaptive Learn Low (Natural Gas) This fault will set if the adaptive multiplier exceeds the limits of normal
operation.
161 System Voltage Low This fault will set if the EPM detects voltage less than 9.5 for 5 sec-
onds or longer while the alternator should be charging. The adaptive
learn is disabled due to the inability of the EPM to correctly time injec-
tor openings.
162 System Voltage High This fault will set if the EPM detects voltage greater than 18 volts for 3
seconds at anytime the engine is cranking or running. The adaptive
learn is disabled due to the inability of the EPM to correctly time the
injector openings.
The EPM will shut down with internal protection with more than 26
volts. A fuse will then blow in the harness.
211 IAT High Voltage This fault will set if the signal voltage is more than 4.95 volts anytime
the engine is running. The EPM will use the default value for the IAT
sensor in the event of this fault.
212 IAT Low Voltage This fault will set if the signal voltage is less than 0.05 volts anytime
the engine is cranking or running. The EPM will use a default value for
the IAT sensor in the event
213 IAT Higher Than Expected 1 This fault will set if the Intake Air Temperature is greater than 200
deg.F and engine RPM is greater than 1000 and Power Derate 1 will
be enforced. During this fault, maximum throttle position is 50% and
the MIL light will flash twice per second.
214 IAT Higher Than Expected 2 This fault will set if the Intake Air Temperature is greater than 210
deg.F and engine RPM is greater than 1000. The MIL light will be on
during this active fault and the engine will shut down.
215 Oil Pressure Low This fault can be configured two different ways. It may use a normally
closed switch or a normally open switch. If the switch is normally
open, the fault will set if the circuit becomes grounded. If the switch is
normally closed, the fault will set if the circuit becomes open. Go to
the Fault page on Diagnostic Tool to determine how the input is con-
figured. (“Open is OK” is normally open and “Ground is OK” is nor-
mally closed). The engine will shut down in the event of this fault to
help prevent possible damage.
221 ECT High Voltage This fault will set if the signal voltage is greater than 4.95 volts anytime
the engine is running. The EPM will use a default value for the ECT
sensor in the event of this fault.
222 ECT Low Voltage This fault will set if the signal voltage is less than 0.05 volts anytime
the engine is running. The EPM will use a default value for the ECT
sensor in the event of this fault.
231 MAP High Pressure This fault will set when the MAP reading is higher than it should be for
the given TPS, and RPM. When the fault is set, the Adaptive Learn will
be disabled for the remainder of the key on cycle and the MIL will be
on. The engine will operate on a default MAP during this active fault.
Table 3-10. EPM Diagnostic Trouble Codes
Diagnostic
Trouble
Code
Description Cause for Setting DTC