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 drivers serve as a master switch to supply battery voltage to the low side drivers. High side drivers are tuned on during Transmission Control Module (TCM) initialization, and remain on during normal operation. High side drivers are turned off during cranking and certain diagnostic responses. High Side Driver 3 (HSD3) supplies battery voltage to the Torque Converter Clutch (TCC) solenoid, Pressure Clutch Solenoid 5 (PCS5) and Shift Solenoid 2 (SS2)...

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 then compares the known gear ratio to the calculated gear ratio for the current range. This DTC test determines if the on-coming clutch controlled by Pressure Control Solenoid 4 (PCS4) engages during a forward range shift. PCS4 controls the C4 clutch for 2nd and 6th range in all 3000 and 4000 transmissions. CONDITIONS FOR RUNNING THE DTC:1. Hydraulic system is pressurized.2. Hydraulic default condition not present.3. Output speed is above...

DIAGNOSTIC RESPONSE:DNS, SOL OFF (hydraulic default) 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 then compares the known gear ratio to the calculated gear ratio for the current range. This DTC test determines if the off-going clutch controlled by Pressure Control Solenoid 4 (PCS4) remains engaged during a forward range shift. PCS4 controls the C4 clutch for 2nd and 6th range in all 3000 and 4000 transmissions. CONDITIONS FOR RUNNING THE DTC:1. Hydraulic system is pressurized.2. Hydraulic default condition not present.3....

DIAGNOSTIC RESPONSE:DNS, SOL OFF (hydraulic default) CIRCUIT DESCRIPTION:Pressure Control Solenoid 4 (PCS4) is a normally closed solenoid used to apply the C4 clutch in 2nd and 6th ranges. The Transmission Control Module (TCM) commands the solenoid ON to produce hydraulic pressure in the clutch apply circuit. When PCS4 is commanded OFF, the clutch pressure is released. The TCM sends control current to PCS4 from High Side Driver 1 (HSD1) via wire 111. HSD1 is continuously ON unless the TCM detects a fault condition. The TCM regulates the amount of current to PCS4 by switching PCS4 low side driver ON and...

DIAGNOSTIC RESPONSE:DNS, SOL OFF (hydraulic default) CIRCUIT DESCRIPTION:Pressure Control Solenoid 4 (PCS4) is a normally closed solenoid used to apply the C4 clutch in 2nd and 6th ranges. The Transmission Control Module (TCM) commands the solenoid ON to produce hydraulic pressure in the clutch apply circuit. When PCS4 is commanded OFF, the clutch pressure is released. The TCM sends control current to PCS4 from High Side Driver 1 (HSD1) via wire 111. HSD1 is continuously ON unless the TCM detects a fault condition. The TCM regulates the amount of current to PCS4 by switching PCS4 low side driver ON and...