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The Cummins ISB engine
has a means to pull data from the ECM to analyze any engine problems, which
might exist. This can be done through the use of Warning (yellow) and Stop (red)
lights on dash panel to signify fault codes. Note– not all system anomalies
are shown in fault codes. To check for active
engine electronic fuel system fault codes , turn the key switch “OFF” and
move the diagnostic switch to “ON” position.
Turn vehicle key switch
to “ON” position. If no active fault codes
are recorded, both lights will come on and stay on. If active fault codes are
recorded, both lights will come on momentarily and then begin to flash the code
of the recorded faults. The fault codes will
flash in the following sequence: First a “Warning”
(yellow) lamp will flash. Then there will be a short one or two second pause
after which the number of the recorded fault will flash in “ STOP” (red).
There will be a one or two second pause between each number. When the number has
finished flashing in red, a yellow lamp will appear again. The three digit code
will repeat in the same sequence. The lights flash each
fault code two times before advancing to the next code. You can skip ahead by
using the “Idle Adjust” switch. |
