Instruction Manual
Using The Banks PowerPDA 
Vehicle Command Center 
Check the Banks PowerPDA’s 
Status Indicator for the “OK” icon. 
Any EconoMind Tuner fault will be 
indicated by the “Banks Engine” icon 
(see Figure 51) and its cause can 
be investigated by going to the ‘Self 
Diagnostics’ screen and scrolling 
through the list of logged tuner 
events. 
1. Press the center button on the 5- 
way navigator to take you to the
System Menu screen. 
2. Touch the button labeled ‘More>’ 
to move to the second screen of the 
System Menu.
3. Next, touch the ‘Self Diagnostics’ 
button. (See Figure 52)
4. The ‘Self Diagnostics’ screen 
displays a log of diagnostic events 
related to the EconoMind tuner (See 
Figure 53). The ‘Logged Events’ list 
takes a moment to update each time 
this screen is opened (as indicated 
by a slight flickering of the list). Once 
the list is updated, the most current 
event will appear at the top 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. 
5. Touch the button labeled ‘Down’ 
to scroll down through the recorded 
events.
6. Touch the button labeled ‘Up’ 
to scroll up through the recorded 
events.
7. Touch the ‘Back’ button to return 
to the System Monitor screen.
Diagnosing EconoMind error 
codes without the PowerPDA.
If you feel that your Banks 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 Banks EconoMind Diesel 
Tuner from its 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. Turn 
the vehicle key to the ON position. 
Observe the two LEDs mounted on 
the end of the Banks 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 its 
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 its normal 
operating range. The GREEN LED will 
stop flashing once the engine coolant 
temperature is within its 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 
of if there is a problem with the 
system – this sequence will identify 
one or more diagnostic codes. A 
Banks 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 the 
common diagnostic codes. For 
example, if a faulty thermocouple 
is detected (code “2,3”) by the 
Banks 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 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 10-
Section 10
TROUBLESHOOTING, ECONOMIND
Figure 52
Figure 53
Figure 51
EconoMind 
TUnER icon
40  96776 v.11.0










