2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1571
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)
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)
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)
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. Perform the 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)
to verify correct fluid level.
2. Engine idling at operating temperature, observe the scan tool Transmission Fluid Temperature parameter. The reading should be between -40
to +215掳C (-40 to +488掳F) and change.
3. Operate the vehicle at about 60 km/h (37 MPH) for 10 min. Verify the scan tool Transmission Fluid Temperature parameter varies by more
than 2掳C (3.5掳F) to verify that the sensor is not stuck.
Circuit/System Testing
Operate the vehicle within the conditions for running and setting the DTC to verify the DTC does not reset. You may also operate the vehicle
within the conditions that you observed from the Freeze Frame/Failure Records data.
Component Testing
Static Test
1. Ignition OFF, remove the K71 Transmission Control Module.
2. Ignition OFF, test for infinite resistance between the low reference circuit terminal 7 X2 and ground.
瀚慖f less than the specified range, replace the wiring harness.
3. Ignition OFF, test for infinite resistance between the signal circuit terminal 8 X2 and ground.
瀚慖f less than the specified range, replace the wiring harness.
4. Test for infinite resistance between each terminal and the low reference circuit terminal 7 X2 and also to the signal circuit terminal 8 X2.
瀚慖f less than the specified range, replace the wiring harness.
5. Test for the resistance between the B13 Automatic Transmission Fluid Temperature Sensor signal circuit terminal 7 X2 and the low reference
circuit terminal 8 X2. Refer to Transmission Fluid Temperature Sensor Specifications (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Specifications/Pressure, Vacuum and Temperature Specifications) for the resistance values.
瀚慖f not within the specified range, replace the wiring harness.
6. If the circuit test normal, replace the K71 Transmission Control Module.
