User guide
26 96815 v.3.0
Six-Gun Troubleshooting Using The 
Banks iQ
Check the Banks iQ’s Status indicator 
for the “OK” icon on the upper left 
corner of the iQ screen. Any Tuner 
fault will be indicated by the “Banks 
Engine” icon (see Figure 15) and its 
cause can be investigated by running a 
‘Power Diagnostic’ from the Diagnostic 
menu.
1. In the Environment select menu 
press on the ‘Diagnostics’ button. See 
Figure 16. 
2. In the Diagnostics menu press on 
the ‘Tuner Diagnostics’ button to run a 
tuner diagnostics. See Figure 17.
3. The ‘Self Diagnostic’ screen displays 
a log of diagnostic events related to 
the Power Tuner. The ‘Logged Events’ 
list takes a moment to update each 
time this screen is opened. Once 
the list is updated, the most current 
event will appear at the bottom of 
the list. Each event has an associated 
timestamp and description, which will 
be displayed below the list when that 
event is highlighted. Each key cycle 
of the vehicle produces a minimum 
of two logged events. See Figure 18. 
Table 1 lists the common diagnostic 
codes and the suggested Course of 
Action for each.
4. Use the arrow buttons to scroll 
through the recorded events.
5. Touch the Banks iQ icon on the 
lower left of the screen to return to 
the environment screen or the return 
icon to return to the Diagnostics 
menu.
6. A pop-up “Log-File” screen will 
appear asking you if you want to erase 
the contents of the log. Press ‘No’ to 
keep the contents on Log-file or ‘Yes’, 
to erase the Log-files.
Section 7
TROUBLESHOOTING
Figure 16
Figure 15
Banks Engine 
Icon










