Banks Power Dodge Trucks: (Diesel ’03 - 07 5.9L Cummins) Tuner- Six-Gun Diesel Tuner (235, 250, 305 HP Dodge 5.9L Cummins (24-valve) Trucks) '03-04 For use with Six-Gun Switch - Manual (Page 32)

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Table 1: Banks Six-Gun Diagnostic Codes
Diagnostic
Code
Code Description Course of action
1,1 Faulty Fuel Rail
Pressure (FRP) input
signal
Check FRP sensor connection and 8-pin Six-
Gun Diesel Tuner connector. Reset Six-Gun
Diesel Tuner by turning key on and off.
1,2 Faulty Manifold
Absolute Pressure
(MAP) input signal
Check MAP sensor connection and 8-pin Six-
Gun Diesel Tuner connector. Reset Six-Gun
Diesel Tuner by turning key on and off.
1,3 Faulty Six-Gun signal
input
Make sure the Six-Gun switch is connected to
the main wire harness. Reset Six-Gun Diesel
Tuner by turning key on and off.
2,1 Faulty Fuel Rail
Pressure (FRP) output
signal
Check FRP sensor connection and 8-pin Six-
Gun Diesel Tuner connector. Reset Six-Gun
Diesel Tuner by turning key on and off.
2,2 Faulty Manifold
Absolute Pressure
(MAP) output signal
Check MAP sensor connection and 8-pin Six-
Gun Diesel Tuner connector. Reset Six-Gun
Diesel Tuner by turning key on and off.
2,3 Faulty thermocouple
signal
check thermocouple connection and 2-pin
Six-Gun Diesel Tuner connector.
2,4 Tcc stuck (automatic
transmission ONLY)
Check TCC connection and 4-pin Six-Gun
Diesel Tuner connector. Monitor code
occurrence. contact Banks Technical Service
if occurrence becomes frequent.
3,1 Faulty crankshaft
Position (cKP) or
camshaft Position
(cMP) signal
check both the cKP and cMP sensor
connections and 8-pin Six-Gun Diesel Tuner
connector. Reset Six-Gun Diesel Tuner by
turning key on and off.
3,2 Internal module error contact Banks Technical Service.
3,3 Internal module error contact Banks Technical Service.
3,4 Faulty cAN bus signal Check CAN bus connection and 10-pin Six-Gun
Diesel Tuner connector.
4,2 Transmission slip
detected
(automatic
transmission ONLY)
Six-Gun Diesel Tuner will automatically derate
engine power to preserve the transmission.
4,3 Transmission
learning has not been
completed
Follow the instructions described in “Learning
Transmission” section of the Owner’s Manual.
See Section 4 on page 25 .
4,4 Fuel rail pressure is
excessive
FRP exceeded maximum allowable. Verify
engine power rating and perform
Section 6 on page 27 again.
Contact Banks Technical Service if problem persists.