Buhler 2425 - Manual (Page 158)

SECTION 2 - OPERATION
2-100
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