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2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1729

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1729



DTC P0798 or P0969-P0971



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC P0798



- Pressure Control Solenoid Valve 2 System Performance



DTC P0969



- Pressure Control Solenoid Valve 2 System Performance



DTC P0970



- Pressure Control Solenoid Valve 2 Control Circuit Low Voltage



DTC P0971



- Pressure Control Solenoid Valve 2 Control Circuit High Voltage



Diagnostic Fault Information



Typical Scan Tool Data



Circuit/System Description



The shift control solenoid (SLC2) is installed on the front valve body. The solenoid linearly control hydraulic pressure in response to signals output



from the transmission control module TCM. Through this, the SLC2 controls operating hydraulic pressure to the clutch 2 for smooth shifting.



According to each shift control solenoid assembly, the transmission shifts from 1st gear into 6th gear and vice versa. As a fail-safe function, if any



shift control solenoid assembly abnormality occurs, the TCM will disable the current to the solenoids.



Conditions for Running the DTC



P0798



* The ignition voltage is between 10.2-15.5 V.



* The engine speed is greater than 400 RPM for 2 s.



* The transmission is not in emergency mode.



* Driving in D range.



* TCM communication is normal.



* DTCs P0970 and P0971 are not set.



P0969



* The ignition voltage is between 10.2-15.5 V.



* The engine speed is greater than 400 RPM for 2 s.



* The transmission is not in emergency mode.



* Driving in D range.



* TCM communication is normal.



* The automatic transmission fluid temperature is more than 20掳C (68掳F)



* SLC2 current is more than 0.85 A.

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