Banks Power Chevy_GMC Trucks: Duramax LMM (Diesel ’07 - 10 6.6L) Power Systems- PowerPack & Stinger w_EconoMind ('07-09) LMM (PDA) Compatible w_Optional PowerPDA - Manual (Page 56)

56
96507 v.4.0
EconoMind Troubleshooting using
the Tuner’s LEDs.
(With or without a Banks PowerPDA
Installed)
If you feel that your EconoMind Diesel
Tuner is not functioning properly,
some diagnostics can be performed.
Your EconoMind Diesel Tuner is
equipped with diagnostic features that
will detect and display certain errors.
Remove the EconoMind Diesel Tuner
from it’s mounting location while
keeping all connectors plugged in,
and position it in such a way that you
can view the end of the EconoMind
housing that contains the LEDs from
the driver’s seat (Figure 52). Turn
the vehicle key to the ON position.
Observe the two LEDs mounted on the
end of the EconoMind Diesel Tuner:
• A steady GREEN LED will illuminate
if all wire connections are correct,
the engine is running, and the engine
coolant temperature is within it’s
normal operating range.
• The GREEN LED will flash if all wire
connections are correct, the engine
is running, but the engine coolant
temperature is not within it’s normal
operating range. The GREEN LED will
stop flashing once the engine coolant
temperature is within it’s normal
operating range.
• No LEDs will illuminate if the fuse
on the EconoMind wiring harness is
blown or the wiring harness is not
properly connected. If the fuse and all
connections are okay, contact Banks
Technical Service.
• The RED LED will flash in a certain
sequence if a connection is incorrect
or if there is a problem with the
system – this sequence will identify
one or more diagnostic codes. A
EconoMind Diesel Tuner’s diagnostic
code is comprised of 2 digits. Each
code is expressed in a sequence of 2
sets of the flashing RED LED separated
by a brief flashing of the GREEN LED in
between. Each set of a number of RED
LED flashes represents a digit. A longer
flashing of the GREEN LED separates
the sequences. The LEDs will continue
to flash to display all the errors, and
then repeat. Table 1 lists common
diagnostic codes. For example, if a
faulty thermocouple is detected (code
“2,3”) by the EconoMind Diesel Tuner,
the following RED and GREEN LED
flashing sequence is observed when
the key is on:
(1) Two times flashing RED LED
(2) One time quick flashing GREEN LED
(3) Three times flashing RED LED
(4) One time longer flashing GREEN
LED
The above flashing sequence will
repeat continuously. When the
problem is corrected, the diagnostic
code will be eliminated and replaced
by a steady GREEN LED. If the problem
persists, contact Banks Technical
Service.
NOTE: If multiple codes are set, they
will be displayed in a series separated
by the longer flashing GREEN LED.
When reading codes, make sure to
watch the entire series until you see
the first code repeat.
Figure 52