Patent ID: 7684917

Claim:
A diagnostic information display system for a construction machine, the system installed in the construction machine and comprising: display means disposed inside a cab of the construction machine; detection means for detecting status variables related to an operating state of the construction machine or ambient environment; storage means for storing combinations between a plurality of snapshot items, as items about a failure that occurs to such an extent that it does not generate an abnormality as a detection result, and status variables related to each of the snapshot items in advance; operating means disposed inside the cab of the construction machine, and being capable of inputting a command by an operator for selecting one of the snapshot items and for displaying changes of current status variables related to the selected snapshot item; manual snapshot processing means for acquiring the status variables, which is regarded as being related based on the stored combinations, from corresponding detected signals of said detection means with respect to the snapshot item selected by said operating means; failure determining means for comparing each of the status variables or a value computed based on a plurality of status variables, which are acquired by said manual snapshot processing means, with a corresponding predetermined reference value range, and determining the failure when the status variable or the computed value is outside the predetermined reference value range; and status variable display control means for displaying the status variables, which are acquired by said manual snapshot processing means, with distinguishing the status value, which said failure determining means has determined the failure based on, on said display means.