845271 Volvo.Penta Coolant pipe

Functions of the Lamps
Shutdown 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 the engine is derated because of an active diagnostic code. An example of an active diagnostic code is "System Voltage High".On - The lamp will be on when the shutdown level in the engine protection strategy has been reached. The "Warning" lamp will also be on.Warning 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 "Shutdown" lamp will also be on.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 80 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 "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 "Warning" lamp will also be flashing and the "Shutdown" 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.Regeneration Active 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).Wait to Start 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 "Wait to Start" is active.On - The lamp is on during a "Wait to Start" period.Low Oil Pressure
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 come on when a low oil pressure event is detected. The "Warning" lamp and the "Shutdown" lamp may also come on.Color of Lamps
Typically, the "Shutdown" lamp is colored red and the "Warning" lamp is colored amber. The color of the other lamps can vary.Operation of the Indicator Lamps
Table 1
Warning Lamp
(Alert Lamp) Shutdown Lamp
(Action Lamp) Regen Active 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 warning 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 warning 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 warning lamp flashes during operation of the engine, 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) The warning and shutdown lamps flash if a value for the engine protection strategy has exceeded the level for 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 warning lamp and the shutdown 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