TANK AS-FUEL 4172054 - Caterpillar

Indicator Lamps
Three lamps are available: The "Diagnostic Lamp", the"Warning Lamp" and the "Maintenance Lamp" As a self test, all of the warning lamps will come on for a brief period when the keyswitch is moved to the ON position.Functions of the Lamps
Warning Lamp
The "Warning Lamp" is used to indicate a engine problem that was detected by the engine monitoring feature. The "Warning Lamp" is used to indicate engine problems such as low oil pressure.Diagnostic Lamp
The "Diagnostic Lamp" is required to indicate a problem with the control system.The "Diagnostic Lamp" can also be used to indicate a diagnostic code by use of the "Flash Code" feature.Maintenance Lamp
The "Maintenance Lamp" will be on when the programmed maintenance interval has expired.If an electrical problem is suspected with the indicator lamps, refer to Troubleshooting, "Indicator Lamp - Test".