Banks Power Ford Trucks: (Diesel ’03 - 07 6.0L Power Stroke) Tuner- Six-Gun Diesel Tuner w_ optional Speed-Loader Module For use with Six-Gun switch Only - Manual (Page 25)

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Section 5:
TROUBLESHOOTING
If you feel that your Six-Gun Diesel
Tuner is not functioning properly,
some diagnostics can be performed.
Your Six-Gun Diesel Tuner is equipped
with diagnostic features that will
detect and display certain errors.
Remove the Six-Gun Diesel Tuner from
its mounting location while keeping
all connectors plugged in. Turn
the vehicle key to the ON position.
Observe the two LEDs mounted on
the upper corner of the Six-Gun 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
its normal operating range (100 to
220°F).
• The GREEN LED will flash if all wire
connections are correct, the engine
is running, but the engine coolant
temperature is not within its normal
operating range. The GREEN LED will
stop flashing once the engine coolant
temperature is with normal operating
range. Power will not be added if the
coolant temperature is not within its
normal range (not to be confused with
Speed-Loader flash on power up).
• None of the LEDs will illuminate if
the fuse on the Six-Gun wiring harness
is blown or the power supply hook-up
is not properly connected with the
engine running. The power supply
wire is the fused wire that connects
to the t-tap at the PcM. If the power
connection and fuses are okay,
contact Banks Technical Service.
• The RED LED will flash if a
connection is incorrect or if there is
a problem with the system, when
the engine is running. The RED LED
will flash in sequence to identify a
diagnostic code. A Six-Gun 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. 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
some common diagnostic codes.
For example, if a faulty thermocouple
is detected (code 2,3) by the Six-
Gun 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
with a steady green light.
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.
-EnD, SECTIon 5-