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Allison 1000 & 2000 Gen 5 Fault Code:P0974 Shift Solenoid 1 (SS1) Control Circuit - High

Allison 1000 & 2000 Gen 5 Fault Code:P097B Shift Solenoid 2 (SS2) Control Circuit - Open

Allison 1000 & 2000 Gen 5 Fault Code:P0976 Shift Solenoid 2 (SS2) Control Circuit - Low

Allison 1000 & 2000 Gen 5 Fault Code:P0977 Shift Solenoid 2 (SS2) Control Circuit - High

Allison 1000 & 2000 Gen 5 Fault Code:P097C Shift Solenoid 3 (SS3) Control Circuit - Open

Allison 1000 & 2000 Gen 5 Fault Code:P0979 Shift Solenoid 3 (SS3) Control Circuit - Low

Allison 1000 & 2000 Gen 5 Fault Code:P0980 Shift Solenoid 3 (SS3) Control Circuit - High

Allison 1000 & 2000 Gen 5 Fault Code:P1790 Gear Shift Module 1 Calibration Invalid

Allison 1000 & 2000 Gen 5 Fault Code:P1891 Throttle Position Sensor (TPS) PWM Signal - Low Input

Allison 1000 & 2000 Gen 5 Fault Code:P1892 Throttle Position Sensor (TPS) PWM Signal - High Input