Buhler 2375, 2335, 2425, 2290, 2360 manual Engine Diagnostics, 100

SECTION 2 - OPERATION

Engine Diagnostics

The control module on the engine has diagnostic features built into it that allow an authorized Cummins dealer/distributor to access and review fault codes that have occurred in the engine.

Each time a fault occurs in the system, the module records it in memory. The Cummins dealer/distributor can retrieve these codes to assist in diagnosing an engine failure. Two methods of error code retrieval are possible:

Flashing Light Retrieval: Your Buhler Versatile Dealer can use a shorting connector located on the fuse and relay panel at the rear of the tractor cab. The connector, 1, labeled “DIAGNOSTICS”, is located in the lower right hand corner of the panel. When activated, the

shorting connector will cause the yellow engine warning light to flash once, then the red engine warning light (both lights located on EICS light bar) to flash in a predetermined sequence based on the fault code resident in the memory of the module. The yellow engine warning light will flash once more to signify the end of the error code sequence. To cycle to the next error code press the cruise +/-- switch once, and the engine lights will begin a new flash sequence for the next code. Continue this way until error codes start to repeat, signifying no new codes are present. The flashing light sequences are then decipherable to fault codes that tell the Buhler Versatile Service Technician the concern with the engine. The flashing light method of fault code retrieval is very similar to Morse code communication between the engine and the service technician.

Figure 2-134

Echekt/Compulinkt/Insitet Connection: Authorized Cummins dealers/distributors have access to hand held diagnostic tools that can be connected to the electronic module via a data link connector resident on the engine wire harness. The Echek/Compulink/Insite diagnostic tools allow the technician to read engine fault code information directly, download software upgrades to the module and make modifications to existing software in the module.

Regardless of the method of fault code retrieval, the electronic engine control system makes it easy for the service technician to diagnose engine concerns and make repairs to the cause of the fault code.

ATTENTION: Diagnostic procedures on the engine are to be completed only by an authorized Cummins dealer/distributor or Buhler Versatile Dealer.

Do not attempt to enter the diagnostic mode of the module without direct involvement from your Buhler Versatile Dealer or Cummins dealer/distributor.

Figure 2-135

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