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2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1738

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1738



Diagnostic Fault Information



Circuit/System Description



The shift solenoid (SS) 1 is part of the control solenoid valve assembly, which has no serviceable components. SS 1 is a normally closed (NC)



ON/OFF solenoid and is controlled by the TCM through a low side driver. When the SS 1 is energized (ON), SS 1 fluid pressure is directed to the



clutch select valve 2, which allows the valve to overcome the spring pressure and move to the applied position. Power to the SS 1 is supplied by the



TCM through a high side driver (HSD). The HSD protects the circuit and components from excessive current flow. If excessive current flow is



detected, the HSD will turn OFF. When the fault is corrected, the HSD will reset.



Conditions for Running the DTC



P0973



* The engine speed is greater than 400 RPM for 5 seconds.



* The ignition voltage is 8.6 volts or greater.



* DTC P0973 has not set this ignition cycle.



P0974



* The engine speed is greater than 400 RPM for 5 seconds.



* The ignition voltage is 8.6 volts or greater.



* DTC P0974 has not set this ignition cycle.



Conditions for Setting the DTC



P0973



The control solenoid valve assembly detects a short to ground on the SS 1 control circuit for 2 seconds.



P0974



The control solenoid valve assembly detects an open or a short to power on the SS 1 control circuit for 2 seconds.



Action Taken When the DTC Sets



P0973



* DTC P0973 is a Type A DTC.



* The TCM limits the transmission to reverse and 5th gear.



* The TCM inhibits torque converter clutch (TCC) engagement.



* The TCM commands maximum line pressure.



* The TCM freezes transmission adaptive functions.



* The TCM inhibits Tap Up/Down function.



* The TCM inhibits manual shifting of forward gears.



P0974



* DTC P0974 is a Type B DTC.



* The TCM inhibits 1st gear.



Conditions for Clearing the DIC/DTC



* DTC P0973 is a Type A DTC.



* DTC P0974 is a Type B DTC.



Reference Information



Connector End View Reference



* Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)



* Inline Harness Connector End Views (See: Diagrams/Connector Views/Multiple Junction Connector/Connector End Views By Number)



Description and Operation



Transmission General Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/6T70/6T75 -



Automatic Transmission/Transmission General Description)



Electrical Information Reference



* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

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