WIRING GP-AIR SHUTOFF 3156373 - Caterpillar

Engine Indicator Lamps
Note: When in operation the amber warning lamp has three states, solid, flashing, and fast flashing. The sequence is to give a visual indication of the importance of the warning. Some application can have an audible warning installed.Ensure that the engine maintenance is carried out at the correct intervals. A lack of maintenance can result in illumination of the warning lamp. For the correct intervals of maintenance, refer to the Operation and Maintenance Manual, "Maintenance Interval Schedule".
Table 1
Indicator Lamp Table
Warning Lamp Shutdown Action Indicator Lamp Lamp State Description of the Indication Engine Status
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.
If any of the indicators will not illuminate during indicator check, the fault must be investigated immediately
If any Indicators stay illuminated or flash, the fault must be investigated immediately.
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 Solid Off Warning Level 1 warning The engine is operating normally but there is one or more faults with the electronic management system for the engine.
As soon as possible the fault should be investigated.
Flashing Off Warning Level 2 warning The engine continues to be operated, but the level of importance of the warning has increased.
Depending on the particular fault and the severity the engine may be de-rated.
The engine could be damaged if continued to be operated.
Stop the engine. Investigate the code.
Flashing On Engine Shutdown Level 3 warning
If both the warning lamp and the shutdown lamp are in operation, this issue indicates one of the following conditions.
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.
If install, the audible warning will sound.
After a short time period, the engine may 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.
Contact your Cat dealer. Flash Codes
Some applications may support flash codes. A flash code can be viewed by an indicator lamp that when asked will flash in a particular sequence. The indicator lamp used to view the codes is the warning lamp, the lamp can then be refer to as a diagnostic lamp. For more information refer to this Operation and Maintenance Manual, "Diagnostic Lamp". Aftertreatment System
The aftertreatment indicators should illuminate at key on for 2 seconds in order to test the system. If any of the indicators do not illuminate, the fault must be investigated immediately.For more information on the illumination of the aftertreatment indicators refer to this Operation and Maintenance Manual, "Selective Catalytic Reduction Warning System".