3843959 TUBE AS Caterpillar parts
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Alternative (cross code) number:
Fault Code Description
left side of GSC     Fault Code on upper display     DIAG Indicator     Fault Type     Topic
Fault Alarm     CID FMI (1)     Flashing     Active Alarm     Troubleshooting Diagnostic Codes
SP1, SP2, SP3, (1) Missing     Active Alarm     Diagnostic Code Procedure, "SP Fault Code"
AL1 through AL4 (1) Missing     Active Alarm     Diagnostic System Procedures, "AL Fault Code"
Fault Shutdown     CID FMI     Flashing     Active Shutdown     Troubleshooting Diagnostic Codes
SP1, SP2, SP3, Missing     Active Shutdown     Diagnostic System Procedures, "SP Fault Code"
Flashing     Missing     Missing     Active Alarm     Troubleshooting Dedicated Shutdown Indicators
On Continuously     Missing     Missing     Active Shutdown
None     CID FMI (2)     On Continuously     Inactive Alarm     Troubleshooting Diagnostic Codes
CID FMI (2) On Continuously     Inactive Shutdown     Troubleshooting Diagnostic Codes
SP1, SP2, SP3, Missing     Inactive Shutdown     Diagnostic System Procedures, "SP Fault Code"
Missing Missing     Undiagnosed Shutdown     Symptom Procedures
( 1 ) Fault code is shown after the alarm code key is pressed.
( 2 ) Fault Code is stored in the fault log of the GSC. To view the fault code, see Systems Operation, "Fault Log Viewing OP1" within the topic Service Mode.
Illustration 1 g00614724
GSC Display Area (1) Dedicated shutdown indicators (2) Spare fault indicators (3) Fault shutdown indicator (4) Fault alarm indicator (5) Upper display (6) Lower display (7) Keypad (8) DIAG indicatorFaults that are detected and diagnosed by the GSC are shown to service personnel in the display area of the GSC. The GSC uses dedicated shutdown indicators (1), fault shutdown indicator (3), fault alarm indicator (4), "DIAG" indicator (8), upper display (5) and lower display (6) to tell service personnel about a fault. Perform the following procedure in order to identify the fault that is detected by the GSC.Note: The "DIAG" indicator (8) functions when diagnostic information is available from the GSC.
Make a note of the indicators that are functioning on the left side of the "GSC".
View the fault code on the upper display (5). If the fault alarm indicator (4) is FLASHING and no fault code is present on the upper display (5), press the alarm codes key in order to view the fault code.
Make a note of whether or not "DIAG" indicator (8) is FLASHING ON CONTINUOUSLY or MISSING.
On the fault identification chart, look at the first column. Locate the fault indicator that is functioning.
Go to the second column in the chart. Find the fault code that is presently shown on the upper display (5) .
Go to the third column in the chart which describes the status of "DIAG" indicator (8) .
Read the last two columns in order to find the type of fault and corresponding topic within this module.