0172673 EVINRUDE LEAD ASSY., Sending unit

Functions of the Lamps
Engine System Indicator Lamp
Lamp check - When the keyswitch is turned to ON, the lamp will come on for 2 seconds. The lamp will then go off unless there is an active warning.Flashing - The lamp will be flashing when a "warning" or a "warning and derate" is active. This situation includes low oil pressure.On - The lamp will be on when the shutdown level has been reached. The Action lamp will also be on.Action Lamp
Lamp check - When the keyswitch is turned to ON, the lamp will come on for 2 seconds. The lamp will then go off unless there is an active warning.Flashing red - The lamp will be flashing when a Level 1 or Level 2 diagnostic code is active. An example of an active diagnostic code is "System Voltage High".Steady amber - The lamp will show steady amber when communication between the instrument panel and the Messenger display has failed.High Exhaust System Temperature (HEST) Lamp
Lamp check - When the keyswitch is turned to ON, the lamp will come on for 2 seconds. The lamp will then go off unless there is an active warning.On - The lamp will be on during active regeneration when the machine is not operating under load and the outlet temperature of the DPF is more than 450° C (842° F).DPF Lamp
Lamp check - When the keyswitch is turned to ON, the lamp will come on for 2 seconds. The lamp will then go off unless there is an active warning.On - The lamp will be on when a "warning" is active. The warning will occur when the level of soot in the DPF has reached 90 percent. The lamp will be on when the derate level has been reached. This situation will occur when the level of soot in the DPF has reached 100 percent. The Engine Warning lamp will also be flashing. The lamp will be on when the shutdown level has been reached. This situation will occur when the level of soot in the DPF has reached 116 percent. The Engine Warning lamp will also be flashing and the Action lamp will be on.DPF Disabled Lamp
Lamp check - When the keyswitch is turned to ON, the lamp will come on for 2 seconds. The lamp will then go off unless there is an active warning.On - The lamp will be on when regeneration has been disabled by the operator or by the engine ECM.Operation of the Indicator Lamps
Table 1
Engine System Indicator Lamp    Action Lamp    HEST Lamp    DPF Lamp    DPF Disabled Lamp    Lamp State    Description of the Indication    Engine State    
On     On     On     On     On     Lamp Check     When the keyswitch is moved to the ON position, the lamps come on for 2 seconds and the lamps will then go off.     The keyswitch is in the ON position but the engine has not yet been cranked.    
Off     Off     Off     Off     Off     No Faults     With the engine in operation, there are no active warnings, diagnostic codes, or event codes.     The engine is operating with no detected faults.    
On     Off     Off     Off     Off     Active Diagnostic     If the Engine System Indicator lamp comes on during engine operation, the lamp indicates that an active diagnostic code (an electrical fault) is present.     The engine is operating normally but there is one or more faults with the electronic management system for the engine.    
On     Flashing     Off     Off     Off     Derate
(An engine derate is caused by certain active codes.)     If the Engine System Indicator lamp comes on and the shutdown lamp flashes during engine operation, an active diagnostic code (an electrical fault) is present. The diagnostic is sufficiently serious in order to cause an engine derate.     The engine is operating but there is one or more active diagnostic codes that have initiated an engine derate.    
Flashing     Off     Off     Off     Off     Warning
(Warning only)     When the Engine System Indicator lamp flashes during engine operation, one or more of the warning values for the engine protection strategy has been exceeded. However, the value has not been exceeded to a level that will cause the engine to derate or a shutdown.     The engine is operating normally. However, there is one or more of the monitored engine parameters that are outside of the range that is acceptable.    
Flashing     Flashing     Off     Off     Off     Derate
(Warning and Derate)     If both the Engine System Indicator lamp and action lamp flash, one or more of the values for the engine protection strategy have exceeded a level that will cause an engine derate.     The engine is operating. However, one or more of the monitored engine parameters is outside of the acceptable range. The acceptable range has been exceeded to a level which requires a warning and an engine derate.    
On     On     Off     Off     Off     Engine Shutdown     If both the Engine System Indicator lamp and the action lamp come on during engine operation, one of the following conditions exists:
1. One or more of the shutdown values for the engine protection strategy has been exceeded.
2. A serious active diagnostic code has been detected.
After a short time, the engine will shut down.     The engine is either shutdown or an engine shutdown is imminent. One or more monitored engine parameters have exceeded the limit for an engine shutdown. This pattern of lamps can be caused by the detection of a serious active diagnostic code.    
Off     Off     On     Off     Off     High exhaust temperature     The engine is operating at a low idle speed and the exhaust system temperature is above
450° C (842° F). The lamp will remain on until the exhaust temperature falls below 450 deg C, or the engine is