Banks Power Chevy_GMC Trucks: Duramax LB7 (Diesel ’01 - 04 6.6L) Tuner- Six-Gun Diesel Tuner with optional Speed-Loader Module '01-04 For use with Six-Gun Switch - Manual (Page 21)

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Table 1: Banks Six-Gun Diagnostic Codes
Diagnostic
Code
Code Description Course of Action
1,1 Fuel Rail Pressure Input Signal Fault Check Main Harness Connection
1,2 Boost Input Signal Fault Check Main Harness Connection
1,3 Six-Gun Input Switch Not Connected
Check Six-Gun Switch or
Speed-Loader Connection
1,4 Barometric Pressure Input Fault Check Main Harness Connection
2,1 Fuel Rail Pressure Output Signal Fault Check Main Harness Connection
2,2 Boost Output Signal Fault Check Main Harness Connection
2,3 EGT Input Signal Fault
Check EGT Thermocouple,
connections, extension wire, etc.
2,4 TCC Input Signal Fault Check TCC Harness Connections
3,1 Crank Input Fault Check Main Harness Connection
3,2 Internal Module Error
Call Gale Banks Engineering
Tech Support
3,3 Internal Module Error
Call Gale Banks Engineering
Tech Support
3,4
CAN Bus Problem (Data Input
Timeout)
Check Main Harness Connection
4,1 Injector Input Fault Check Main Harness Connection
4,2
Transmission Slip Detected
(Auto Trans)
Transmission Is Slipping. Code Will
Stop Once The Transmission Slipping
Stops (repaired)