Banks Power Chevy_GMC Trucks: Duramax LMM (Diesel ’07 - 10 6.6L) Tuner- Six-Gun Diesel Tuner '07-10 (iQ) Compatible with Optional Banks iQ - Manual (Page 23)

96819 v.3.0
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Six-Gun Troubleshooting using the
Tuner’s LEDs.
(With or without a Banks
iQ Installed)
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
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 Six-Gun housing that
contains the LEDs from the driver’s
seat. Turn the vehicle key to the
ON position. Observe the two LEDs
mounted on the end 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 it’s
normal operating range.
Figure 23
Figure 22