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Allison WTEC II Fault Code: 56 PID: SPN: 44 FMI: Range verification ratio test, 4th

Allison WTEC II Fault Code: 56 PID: SPN: 55 FMI: Range verification ratio test, 5th

Allison WTEC II Fault Code: 56 PID: SPN: 77 FMI: Range verification ratio test, R

Allison WTEC II Fault Code: 56 PID: SPN: 66 FMI: Range verification ratio test, 6th

Allison WTEC II Fault Code: 57 PID: SPN: 11 FMI: Range verification C3PS test, 1st

Allison WTEC II Fault Code: 57 PID: SPN: 22 FMI: Range verification C3PS test, 2nd

Allison WTEC II Fault Code: 57 PID: SPN: 44 FMI: Range verification C3PS test, 4th

Allison WTEC II Fault Code: 57 PID: SPN: 66 FMI: Range verification C3PS test, 6th

Allison WTEC II Fault Code: 57 PID: SPN: 99 FMI: Range verification C3PS test, N1 or N4

Allison WTEC II Fault Code: 57 PID: SPN: 88 FMI: Range verification C3PS test, N1