Allison

Allison 3000 & 4000 Gen 4 Fault Code: P0975 Shi...

DIAGNOSTIC RESPONSE:7-speed: Allow 2 through 6, N, R CIRCUIT DESCRIPTION:The Shift Solenoid 2 (SS2) may either be assigned to retarder models with an air solenoid or to the SS2 required...

Allison 3000 & 4000 Gen 4 Fault Code: P0974 Shi...

DIAGNOSTIC RESPONSE:DNS, SOL OFF (hydraulic default) CIRCUIT DESCRIPTION:Shift Solenoid 1 (SS1) is normally closed solenoid used to properly position C1 and C2 logic latch valves in forward ranges. The Transmission...

Allison 3000 & 4000 Gen 4 Fault Code: P0973 Shi...

DIAGNOSTIC RESPONSE:DNS, SOL OFF (hydraulic default) CIRCUIT DESCRIPTION:Shift Solenoid 1 (SS1) is normally closed solenoid used to properly position C1 and C2 logic latch valves in forward ranges. The Transmission...

Allison 3000 & 4000 Gen 4 Fault Code: P0971 Pre...

DIAGNOSTIC RESPONSE:DNS, SOL OFF (hydraulic default) CIRCUIT DESCRIPTION:Pressure Control Solenoid 3 (PCS3) is a normally closed solenoid used to apply the C5 clutch in Reverse, Neutral, and First and to...

Allison 3000 & 4000 Gen 4 Fault Code: P0970 Pre...

DIAGNOSTIC RESPONSE:DNS, SOL OFF (hydraulic default) CIRCUIT DESCRIPTION:Pressure Control Solenoid 3 (PCS3) is a normally closed solenoid used to apply the C5 clutch in Reverse, Neutral, and First and to...

Allison 3000 & 4000 Gen 4 Fault Code: P0968 Pre...

DIAGNOSTIC RESPONSE:DNS, SOL OFF (hydraulic default) CIRCUIT DESCRIPTION:Pressure Control Solenoid 3 (PCS3) is a normally closed solenoid used to apply the C5 clutch in Reverse, Neutral, and First and to...