Systems and Equipment - 177 JT30 /JT30 All Terrain Operator’s Manual
Diagnostic Codes
CMW
Machine Diagnostic System Overview
Use the Information Center to view condition of the machine automation diagnostic system. Under normal
operating conditions, any diagnostic code that is recorded will be shown on the bottom line of the
Information Center. Non-essential codes will remain for 10 seconds and then go away. Essential codes will
remain until the operator clears them from the display. If diagnostic codes are detected, the diagnostic light
will either flash on and off for 10 seconds to indicate a non-essential code or remain on for 3 seconds and
off for half a second to indicate an essential code.
Code Severity Levels
Diagnostic codes are given one of two levels of severity.
•A non-essential code affects non-essential functions of the unit. If the system detects a non-essential
problem, a diagnostic code will be recorded and the diagnostic light will flash for 10 seconds and then
go out. Each time ignition is turned on, full operation will be available until the diagnostic system
detects a problem.
• An essential code affects rotation, thrust, drilling fluid, or ground drive. If the system detects an
essential problem, a diagnostic code will be recorded and the diagnostic light will cycle on for three
seconds and off for 1/2 second. Some machine functions may not work until the problem is corrected.
Each time ignition is turned on, full operation will be available until the diagnostic system detects a
problem.
Machine Diagnostic Codes
The following table lists the attributes of each diagnostic code. Information presented includes: code
number, condition causing code to be sent, result, and level of severity.
Code Display Condition Result Severity
12 START MSG normal entry into diagnostic
mode
code is not stored n/a
13 m12VOLT
OUTPUT
no 12V power to main
controller
drill and drive are blocked essential
14 m5VOLT OUTPUT no 5V power from main
controller
drill and drive are blocked essential
15 m6VOLT DRIVER incorrect voltage on 6V
driver on main controller
drive is blocked essential
16 p12VOLT OUT no 12V power to pipe
controller
drill fluid is blocked essential
17 p5VOLT OUT no 5V power from pipe
controller
drill fluid is blocked essential
18 p6VOLT DRIVER incorrect voltage on 6V
driver on pipe controller
code is stored essential
19 MISC OUTPUT unknown output driver
continuity problem
code is stored non-
essential
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