JLG 601S ANSI Service Manual - Manual (Page 117)

SECTION 3 - CHASSIS & TURNTABLE
3120746 – JLG Lift – 3-77
612 Invalid Interrupt Several different things can happen within the microprocessor that
will cause this fault. The EPM will reset itself in the event this fault is
set, and the MIL will be on until the code is cleared. This fault should
be erased after diagnosis by removing battery power. It will not self-
erase.
During this active fault, Power Derate (level 2) will be enforced. When
this is enforced, maximum throttle position will be 20%. This is
enforced until the fault is manually cleared.
613 A/D Loss This fault should be erased after diagnosis by removing battery
power. It will not self-erase.
During this active fault, Power Derate (level 2) will be enforced. When
this is enforced, maximum throttle position will be 20%. This is
enforced until the fault is manually cleared.
614 RTI 1 Loss Several different things can happen within the microprocessor that
will cause this fault. The EPM will reset itself in the event this fault is
set, and the MIL will be on until the code is cleared. This fault should
be erased after diagnosis by removing battery power. It will not self-
erase.
During this active fault, Power Derate (level 2) will be enforced. When
this is enforced, maximum throttle position will be 20%. This is
enforced until the fault is manually cleared.
615 Flash Checksum Invalid Several different things can happen within the microprocessor that
will cause this fault. The EPM will reset itself in the event this fault is
set, and the MIL will be on until the code is cleared. This fault should
be erased after diagnosis by removing battery power. It will not self-
erase.
During this active fault, Power Derate (level 2) will be enforced. When
this is enforced, maximum throttle position will be 20%. This is
enforced until the fault is manually cleared.
616 RAM failure This fault will set if the EPM detects a problem accessing or writing
information to RAM. This fault will not self erase and must be cleared
manually.
631 External 5V Ref Lower Than Expected This fault will set if the 5 Volt reference is below 4.6 volts.
632 External 5V Ref Higher Than Expected This fault will set if the 5 Volt reference is above 5.4 volts.
655 RTI 2 Loss Several different things can happen within the microprocessor that
will cause this fault. The EPM will reset itself in the event this fault is
set, and the MIL will be on until the code is cleared. This fault should
be erased after diagnosis by removing battery power. It will not self-
erase.
During this active fault, Power Derate (level 2) will be enforced. When
this is enforced, maximum throttle position will be 20%. This is
enforced until the fault is manually cleared.
656 RTI 3 loss Several different things can happen within the microprocessor that
will cause this fault. The EPM will reset itself in the event this fault is
set, and the MIL will be on until the code is cleared. This fault should
be erased after diagnosis by removing battery power. It will not self-
erase.
During this active fault, Power Derate (level 2) will be enforced. When
this is enforced, maximum throttle position will be 20%. This is
enforced until the fault is manually cleared.
Table 3-10. EPM Diagnostic Trouble Codes
Diagnostic
Trouble
Code
Description Cause for Setting DTC