2010 Cadillac CTS Sedan AWD V6-3.0L Page 1461

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2010 Cadillac CTS Sedan AWD V6-3.0L Page 1461



Conditions for Setting the DTC



P0502



The transmission output speed is 58 RPM or less for 5 seconds.



P0503



The transmission output speed drops 351 RPMs in less than 3 seconds.



Action Taken When the DTC Sets



P0502 and P0503 are Type B DTCs.



Conditions for Clearing the DTC



P0502 and P0503 are Type B DTCs.



Reference Information



Schematic Reference



Manual Transmission Schematics (See: Transmission and Drivetrain/Manual Transmission/Transaxle/Diagrams/Electrical Diagrams/Tremec



6-Speed - Manual Transmission)



Connector End View Reference



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



Description and Operation



Manual Transmission Description and Operation (See: Transmission and Drivetrain/Manual Transmission/Transaxle/Description and



Operation/Tremec 6-Speed - Manual Transmission/Manual Transmission Description and Operation)



Electrical Information Reference



* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)



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



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



Testing/Testing for Intermittent Conditions and Poor Connections)



* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)



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)



Special Tools



J 35616 - GM-Approved Terminal Test Kit



For equivalent regional tools, refer to Special Tools (See: Transmission and Drivetrain/Manual Transmission/Transaxle/Tools and



Equipment/Tremec 6-Speed - Manual Transmission).



Circuit/System Verification



1. Raise and support the drive wheels.



Caution: Support the lower control arms in the normal horizontal position in order to avoid damage to the drive axles. Do not operate the



vehicle in gear with the wheels hanging down at full travel.



2. Support the lower control arms so that the drive axles are in a horizontal position.



3. Start and idle the engine.



4. Place the transmission in second gear and release the clutch pedal.



5. Monitor VSS parameter on the scan tool. The VSS parameter should increase as the drive wheel speed increases.



6. Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in



the Freeze Frame/Failure Records List.



Circuit/System Testing



1. Disconnect the ECM harness connector X1.

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