Allison

Allison 1000 & 2000 Gen 5 Fault Code:P0973 Shif...

CIRCUIT DESCRIPTION:SS1 is a Normally Closed (N/C) solenoid that provides control main pressure to stroke Shift Valve 1 (SV1) to attain a particular range needed for the next upshift or...

Allison 1000 & 2000 Gen 5 Fault Code:P0971 Pres...

CIRCUIT DESCRIPTION:PCS3 is a Pressure Proportional to Current (PPC) solenoid used to control oncoming and off-going and holding pressure to any one of five clutches. The TCM sends control current...

Allison 1000 & 2000 Gen 5 Fault Code:P0970 Pres...

CIRCUIT DESCRIPTION:HSD3 supplies battery voltage to PCS3 via wire 131. HSD3 is continuously on during normal operation except during brief circuit tests. The TCM regulates control current to the solenoid...

Allison 1000 & 2000 Gen 5 Fault Code:P0968 Pres...

CIRCUIT DESCRIPTION:PCS3 is a Pressure Proportional to Current (PPC) solenoid used to control oncoming and off-going and holding pressure to any one of five clutches. The TCM sends control current...

Allison 1000 & 2000 Gen 5 Fault Code:P0967 Pres...

CIRCUIT DESCRIPTION:PCS2 is a Pressure Proportional to Current (PPC) solenoid used to control oncoming and off-going and holding pressure to any one of five clutches. The TCM sends control current...

Allison 1000 & 2000 Gen 5 Fault Code:P0966 Pres...

CIRCUIT DESCRIPTION:PCS2 is a Pressure Proportional to Current (PPC) solenoid used to control oncoming and off-going and holding pressure to any one of five clutches. The TCM sends control current...