2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1600
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. Verify the transmission fluid level, color and odor is correct.
2. Operate the vehicle to induce a shift from fifth to sixth gear while observing the following scan tool parameters. The scan tool parameters
have to change the proper value referring to the current gear, compare the proper values with: Transmission System Description and
Operation (M36 and MXE) (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/AF40-6 -
Automatic Transmission/Transmission System Description and Operation (M36 and MXE)). Perform this action 2 times.
* Clutch Pressure Control Solenoid Valve 1 Current
* Clutch Pressure Control Solenoid Valve 2 Current
* Clutch Pressure Control Solenoid Valve 3 Current
* Brake Band Pressure Control Solenoid Valve Current
* Shift Solenoid Valve 1
* Shift Solenoid Valve 2
瀚慖f the scan tool parameter does not change the proper value and no other DTCs than P0729, P0731, P0732, P0733, P0734, P0735, P0736,
P0780, P1731 are set, go to circuit/system testing.
瀚慖f any other DTC is set, diagnose that DTC first.
Circuit/System Testing
Dynamic Test
1. Perform the line pressure check. Refer to Line Pressure Check (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Testing and Inspection/Symptom Related Diagnostic Procedures/AF40-6 - Automatic Transmission/Line Pressure
Check).
2. Perform the transmission fluid check. Refer to Transmission Fluid Level and Condition Check (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Testing and Inspection/Symptom Related Diagnostic Procedures/AF40-6 - Automatic Transmission/Transmission
Fluid Level and Condition Check).
3. If all circuits test normal, replace the K71 Transmission Control Module. Verify the DTC does not reset.
瀚慖f the DTC resets replace the control valve body.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control valve body replacement-Refer to Control Valve Body Replacement (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Valve Body/Service and Repair/AF40-6 - Automatic Transmission/Control Valve Body Replacement) for
