VALVE GRINDING 8S9698 - Caterpillar

OP3 is the option for entering the password that is required for accessing OP4 through OP10. Password protection reduces the possibility of mistakenly altering information. The service mode options OP4 through OP10 are password protected. Options OP1 and OP2 are used to view information. Options OP1 and option OP2 are not password protected.Password entry requires entering the scroll keys in the correct sequence. The password is identical for every GSC+. The password cannot be changed. After the password is entered, the OP4 through OP10 options can be accessed. Incorrectly entering the password causes the "PE FAIL" to be briefly shown on the upper display. Pressing the "SELECT" key will start the password entry procedure again.Procedure To Enter The Password
Note: Service mode cannot be entered when the engine control switch (ECS) is in the "AUTO" position.Note: An active shutdown fault will show a FLASHING shutdown indicator. Any active shutdown fault must be deactivated in order to access service mode. To temporarily change a shutdown fault from an active shutdown fault to an inactive shutdown fault, turn the ECS to the OFF/RESET position. To permanently change a shutdown fault from an active shutdown fault to an inactive shutdown fault, the fault must not be occurring. Also, the ECS must be turned to the OFF/RESET position. If the jumper that electrically connects terminal 6 to terminal 9 is not installed on the ECS, then the GSC+ will not power up in OFF/RESET and any active shutdown fault must be corrected before entering service mode.
Press "Service Mode" key in order to enter service mode. "OP1" is showing on the lower display. See Systems Operation, "Service Mode" for more information.
Press the "SCROLL UP" key four times."OP3" is showing.
Press the "SELECT" key. "P E _ _ _ _ _" is showing on the display. The first dash is flashing.
Press "SCROLL RIGHT" key. "P E 1 _ _ _ _" is showing on the display. The second dash is flashing.
Press "SCROLL DOWN" key. "P E 1 3 _ _ _" is showing on the display. The third dash is flashing.
Press "SCROLL UP" key. "P E 1 3 2 _ _ " is showing on the display. The fourth dash is flashing.
Press "SCROLL DOWN" key. "P E 1 3 2 3 _" is showing on the display. The fifth dash is flashing.
Press "SCROLL RIGHT" key. "P E 1 3 2 3 1" is showing.
Press "ENTER" key. "P E PASS" is showing.
Press "EXIT" key. "OP 4" is showing.Note: Once the password is entered, any option can be accessed until service mode is exited.