Allison

Allison WTEC II Fault Code: 51 PID: SPN: 43 FMI...

Main code 51 indicates a failed offgoing ratio test. 4?3 downshift An offgoing ratio test occurs during a shift and uses turbine and output speed sensor readings to calculate the...

Allison WTEC II Fault Code: 51 PID: SPN: 42 FMI...

Main code 51 indicates a failed offgoing ratio test. 4?2 downshift An offgoing ratio test occurs during a shift and uses turbine and output speed sensor readings to calculate the...

Allison WTEC II Fault Code: 51 PID: SPN: 35 FMI...

Main code 51 indicates a failed offgoing ratio test. 3?5 upshift An offgoing ratio test occurs during a shift and uses turbine and output speed sensor readings to calculate the...

Allison WTEC II Fault Code: 51 PID: SPN: 24 FMI...

Main code 51 indicates a failed offgoing ratio test. 2?4 upshift An offgoing ratio test occurs during a shift and uses turbine and output speed sensor readings to calculate the...

Allison WTEC II Fault Code: 51 PID: SPN: 23 FMI...

Main code 51 indicates a failed offgoing ratio test. 2?3 upshift An offgoing ratio test occurs during a shift and uses turbine and output speed sensor readings to calculate the...

Allison WTEC II Fault Code: 51 PID: SPN: 21 FMI...

Main code 51 indicates a failed offgoing ratio test. 2?1 downshift An offgoing ratio test occurs during a shift and uses turbine and output speed sensor readings to calculate the...