Allison 1000 & 2000 Gen 4 Fault Codes: P0731 Incorrect 1st Gear Ratio
Allison 1000 & 2000 Gen 4 Fault Codes: P0727 Engine Speed Input Circuit No Signal
Allison 1000 & 2000 Gen 4 Fault Codes: P0726 Engine Speed Input Circuit Performance
Allison 1000 & 2000 Gen 4 Fault Codes: P0722 Output Speed Sensor Circuit No Signal
Allison 1000 & 2000 Gen 4 Fault Codes: P0721 Output Speed Sensor Circuit Performance
Allison 1000 & 2000 Gen 4 Fault Codes: P0719 Brake Switch ABS Input Low
Allison 1000 & 2000 Gen 4 Fault Codes: P0717 Turbine Speed Sensor Circuit No Signal
Allison 1000 & 2000 Gen 4 Fault Codes: P0716 Turbine Speed Sensor Circuit Performance
Allison 1000 & 2000 Gen 4 Fault Codes: P0713 Transmission Fluid Temperature Sensor Circuit High Input (Low Temperature)
Allison 1000 & 2000 Gen 4 Fault Codes: P0712 Transmission Fluid Temperature Sensor Circuit Low Input (High Temperature)