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 to PCS3 from High Side Driver 3 (HSD3) via wire 131. HSD3 is continuously on unless the TCM detects a fault condition. The TCM regulates the amount of current to PCS3 by switching the low side driver ON and OFF. Wire 137 completes the circuit between PCS3 and its low side driver. DTC P0971 indicates that the TCM processor has detected a short-to-battery condition in the low side of the...

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 downshift. A pressure switch is located at the end of the shift valve to send valve position status back to the TCM. The TCM sends control current to SS1 from High Side Driver 2 (HSD2) via wire 171. HSD2 is continuously on unless the TCM detects a fault condition. The TCM regulates the amount of current to SS1 by switching the low side driver on and off. Wire 152 completes...

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 downshift. A pressure switch is located at the end of the shift valve to send valve position status back to the TCM. The TCM sends control current to SS1 from High Side Driver 2 (HSD2) via wire 171. HSD2 is continuously on unless the TCM detects a fault condition. The TCM regulates the amount of current to SS1 by switching the low side driver on and off. Wire 152 completes...

CIRCUIT DESCRIPTION:SS2 is a Normally Closed (N/C) solenoid that provides control main pressure to stroke Shift Valve 2 (SV2) to attain a particular range needed for the next upshift or downshift. A pressure switch is located at the end of the shift valve to send valve position status back to the TCM. The TCM sends control current to SS2 from High Side Driver 2 (HSD2) via wire 171. HSD2 is continuously on unless the TCM detects a fault condition. The TCM regulates the amount of current to SS2 by switching the low side driver on and off. Wire 133 completes...

CIRCUIT DESCRIPTION:Shift Solenoid 2 (SS2) is a Normally Closed (N/C) solenoid that provides control main pressure to stroke Shift Valve 2 (SV2) to attain a particular range needed for the next upshift or downshift. A pressure switch is located at the end of the shift valve to send valve position status back to the TCM. The TCM sends control current to SS2 from High Side Driver 2 (HSD2) via wire 171. HSD2 is continuously on unless the TCM detects a fault condition. The TCM regulates the amount of current to SS2 by switching the low side driver on and off....