Allison

Allison 3000 & 4000 Gen 4 Fault Code: P2714 Pre...

DIAGNOSTIC RESPONSE:DNS, RPR CIRCUIT DESCRIPTION:The Transmission Control Module (TCM) uses input from the turbine speed and output speed sensors to determine the current commanded for steady-state gear ratio. The TCM...

Allison 3000 & 4000 Gen 4 Fault Code: P2686 Act...

DIAGNOSTIC RESPONSE:DNS, SOL OFF (hydraulic default) CIRCUIT DESCRIPTION:The high side drivers are connected to the high side circuits of the solenoids and commanded on during normal operation. The high side...

Allison 3000 & 4000 Gen 4 Fault Code: P2685 Act...

DIAGNOSTIC RESPONSE:DNS, SOL OFF (hydraulic default) CIRCUIT DESCRIPTION:The high side drivers are connected to the high side circuits of the solenoids and commanded on during normal operation. The high side...

Allison 3000 & 4000 Gen 4 Fault Code: P2684 Act...

DIAGNOSTIC RESPONSE:SOL OFF, Inhibit TCC operation, Inhibit main modulation, DNA CIRCUIT DESCRIPTION:The high side drivers are connected to the high side circuits of the solenoids and commanded on during normal...

Allison 3000 & 4000 Gen 4 Fault Code: P2671 Act...

DIAGNOSTIC RESPONSE:DNS, SOL OFF (hydraulic default) CIRCUIT DESCRIPTION:The high side drivers are connected to the high side circuits of the solenoids and commanded on during normal operation. The high side...

Allison 3000 & 4000 Gen 4 Fault Code: P2670 Act...

DIAGNOSTIC RESPONSE:Yes DNS, SOL OFF (hydraulic default) CIRCUIT DESCRIPTION:The high side drivers are connected to the high side circuits of the solenoids and commanded on during normal operation. The high...