Thursday, February 13, 2020

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1725

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1725



* DTCs P0970 and P0971 are Type B DTCs.



* No self learning function.



* The TCM turns OFF all solenoids.



* The TCM allows the vehicle after a stop to operate only in the second gear and "R" range.



Conditions for Clearing the DTC



P0798, P0969



* DTC P0971 is a Type B DTC.



* The TCM detects the error current less than 50 mA for 2.75 ms.



P0970, P0971



* DTCs P0970 and P0971 are Type B DTCs.



* The current consumption of the SLC2 control circuit is 0.1-1.1 A for 500 ms.



Diagnostic Aids



When attempting to set solenoid electrical DTCs, ensure the TCM is warmed up and the transmission is operated in 2nd gear long enough to ensure



a 3掳C (5掳F) increase in TCM substrate temperature. This will place the TCM under the optimal conditions to test solenoid electrical DTCs.



Reference Information



Schematic Reference



Automatic Transmission Controls Schematics (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Diagrams/Electrical



Diagrams)



Connector End View Reference



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



Electrical Information Reference



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



Testing/Circuit Testing)



* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic



Procedures/Connector Repairs/Connector Repairs)



* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General



Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)



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



Repairs/Wiring Repairs)



Description and Operation



Transmission Component and System Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and



Operation/AF40-6 - Automatic Transmission/Transmission Component and System Description)



DTC Type Reference



Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code



(DTC) Type Definitions)



Scan Tool Reference



Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information



Circuit/System Verification



1. Ensure the transmission fluid temperature is between 50-80掳C (122-176掳F).



2. Operate the vehicle in 2nd gear long enough to ensure at least a 3掳C (5掳F) rise in transmission fluid temperature, then operate the vehicle in



Park for 5 s.



3. Observe the scan tool Clutch Pressure Control Solenoid Valve 2 Current parameter, the reading should be between 0.1-1.1 A.



Circuit/System Testing



Command the Clutch Pressure Control Solenoid Valve 2 with a scan tool. The value should change from 0.0-1.0 A.



If the value does not change, turn ignition OFF, remove the K71 Transmission Control Module. Connect a test lamp between the low reference



circuit terminal 18 X2 at the K71 Transmission Control Module and the voltage supply component circuit terminal 17 X2 at the K71 Transmission



Control Module. Command the Clutch Pressure Control Solenoid Valve 2 with a scan tool. The test lamp has to illuminate brighter with increasing



current.



If the test lamp always illuminate or always does not illuminate, replace the K71 Transmission Control Module.

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