TM 9-6115-729-24
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VIEWING FAULT LOG OP1 - Continued
STEP 2.
Press SERVICE MODE key on GSC keypad. SERV will be displayed on upper display. OP1 will be
displayed on lower display.
STEP 3.
Press LAMP TEST key on keypad. If more than one diagnostic code is present, codes will scroll on
display. The number of occurrences is shown above the COUNT indicator. The lower display shows
value from the hour meter at the first occurrence and the last occurrence of each diagnostic code.
STEP 4.
Press LAMP TEST key to stop scrolling.
STEP 5.
Press POWER METER key. If more than one count of a diagnostic code is logged, the first
occurrence with a corresponding value from the hour meter shows on the lower display.
STEP 6.
Press LAMP TEST key. Diagnostic codes continue scrolling.
STEP 7.
Press EXIT key. OP1 shows on lower display.
STEP 8.
Press EXIT to return display to normal mode.
FAULT LOG CLEARING OP4
OP4 is the option for clearing an inactive fault from the fault log. After a diagnostic fault is investigated and the fault
is corrected, the fault should be cleared from the fault log. Clearing the fault log prevents confusion if you are
investigating later faults.
NOTE
Service mode cannot be entered when the ENGINE CONTROL switch (ECS) is set to AUTO. An
active shutdown indictor will be flashing. Active shutdown indicators must be deactivated in order
to access service mode.
STEP 1.
Set Battery Disconnect switch to ON.
STEP 2.
Set DEAD CRANK SWITCH to NORMAL.
STEP 3.
On EMCP, set ENGINE CONTROL switch (ECS) to COOL DOWN/STOP.
NOTE
In SERVICE MODE, the buttons on the GSC keypad perform new functions as follows:
POWER METER
is Scroll Right
AC METER
is Scroll Up
ENGINE METER
is Scroll Down
LAMP TEST
is Select
ALARM CODES
is Enter
STEP 4.
Press SERVICE MODE key on GSC. SERV will be displayed on upper display. OP1 will be displayed
on lower display.
STEP 5.
Press AC METER key five times. OP3 will be displayed.
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