68578 Mercury ARMATURE

Table 1
Diagnostic Codes Table    
Code and Description     Conditions which Generate this Code     System Response    
268-2 Programmed Parameter Fault erratic, intermittent, or incorrect     The engine's Electronic Control Module (ECM) detects that one or more of the programmable parameters have not been programmed.     The ECM will set the unprogrammed parameter(s) to a default value.
The code is logged.    System configuration parameters are parameters that affect emissions, power of the engine, and machine applications. Default values for the parameters are programmed at the factory. Some parameters may be changed by the customer in order to suit the needs of the specific application. You must reprogram the system configuration parameters if the ECM is replaced and/or if you reprogram the engine rating. Values for these parameters are available on Caterpillar Electronic Technician (ET). Certain configuration parameters are also stamped on the engine information plate.Parameter Descriptions
"Equipment ID"
The "Equipment ID" parameter allows the customer to enter a description into the ECM in order to identify the machine. A maximum of 17 characters can be entered in the field."Engine Serial Number"
Program the "Engine Serial Number" to match the engine serial number that is stamped on the engine information plate. The engine serial number is not preprogrammed on a replacement ECM."FLS" (Full Load Setting)
"FLS" is a number that represents the adjustment to the fuel system that was made at the factory in order to fine tune the fuel system. The correct value for this parameter is stamped on the engine information plate. Only change this value if the engine is rerated or if a new ECM is installed. The parameter allows one time of programming without a factory password. In order to change the "FLS" after the initial programming, factory passwords are required."FTS" (Full Torque Setting)
"FTS" is similar to "FLS". Only change this value if the engine is rerated or if a new ECM is installed. Factory passwords are required. A new ECM or a blank ECM allows one time of programming of the "FTS" without the use of factory passwords. In order to change the "FTS" after the initial programming, factory passwords are required."Fuel Air Ratio Control Adjust" (FARC)
FARC is a fuel system adjustment that has been performed at the factory in order to fine tune the fuel system."Engine Fan Control"
The "Engine Fan Control" parameter allows the operation of this feature to be on or off."Top Engine Fan Speed"
The "Top Engine Fan Speed" parameter is used to set the top speed of the fan. Factory passwords are required."Ether Control"
The parameter for the "Ether Control" allows this feature to be enabled or disabled."Engine Prelube"
The parameter for the "Engine Prelube" allows this feature to be enabled or disabled."Variable Pitch Engine Fan"
The "Variable Pitch Engine Fan" parameter allows the variable pitch fan to be enabled or disabled."Variable Pitch Engine Fan Blade Cooling Position"
The "Variable Pitch Engine Fan Blade Cooling Position" parameter allows the customer to specify the cooling position of the engine fan blade."Engine Fan Purge Cycle Interval"
The "Engine Fan Purge Cycle Interval" parameter allows the customer to set the time interval between purges."Engine Fan Purge Cycle Duration"
The "Engine Fan Purge Cycle Duration" parameter allows the customer to set the duration of an individual purge."Engine Fan Suspend Purge"
The "Engine Fan Suspend Purge" parameter allows the suspend purge in forward gear to be enabled or disabled."Engine Fan Manual Purge"
The "Engine Fan Manual Purge" parameter allows the manual purge button to be enabled or disabled.Parameter Table
Table 2
System Configuration Parameters    
Parameter    Available Range or Options    Default    Required Password    
"Equipment ID"     17 characters     N/A     None    
"Engine Serial Number"     8 characters     N/A     None    
"FLS"     -128 to +127     0     Factory    
"FTS"     -128 to +127     0     Factory    
"Fuel Air Ratio Control Adjust (FARC)"     100 to 250     100     None    
"Engine Fan Control"     On
Off     Off     None    
"Top Engine Fan Speed"     500 to 1500 rpm     Application dependent     Factory    
"Ether Control"     Enabled
Disabled     Disabled     None    
"Engine Prelube"     Enabled
Disabled     Enabled     None    
"Variable Pitch Engine Fan"     Enabled
Disabled     Disabled     None    
"Variable Pitch Engine Fan Blade Cooling Position"     Push
Pull     Push     None    
"Engine Fan Purge Cycle Interval"     300 to 7200 sec     1200 sec     None    
"Engine Fan Purge Cycle Duration"     5 to 30 sec     15 sec     None    
"Engine Fan Suspend Purge"