2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1590

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1590

P0723

* The transmission output speed is 210 RPM or greater for 0.2 second.

* The transmission output speed drops 650 RPM for greater than 1.5 seconds and does not recover.

Action Taken When the DTC Sets

* DTCs P0722 and P0723 are Type A DTCs.

* The TCM freezes transmission adaptive functions.

* The TCM turns OFF the high sided driver, which turns OFF all solenoids.

* The TCM commands maximum line pressure.

* The TCM inhibits Tap Up/Down function.

* The TCM inhibits manual shifting of forward gears.

* The TCM limits the transmission to fifth range and reverse operation.

Conditions for Clearing the DIC/DTC

DTCs P0722 and P0723 are Type A DTCs.

Diagnostic Aids

* Damage or misalignment of the front differential transfer drive gear teeth surface or metallic debris on the face of the sensor may cause a

speed sensor malfunction.

* Proper torque of the OSS mounting bolt is critical to proper OSS operation.

Reference Information

Schematic Reference

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

Connector End View Reference

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

* Inline Harness Connector End Views (See: Diagrams/Connector Views/Multiple Junction Connector/Connector End Views By Number)

Description and Operation

Electronic Component Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/6T70/6T75 -

Automatic Transmission/Electronic Component Description) for output speed sensor (OSS)

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. Ignition ON, verify with a scan tool the transmission ISS/OSS Supply Voltage parameter displays OK.

2. Operate the vehicle at 16-32 km/h (10-20 mph) while observing the scan tool transmission OSS parameter. The transmission OSS should

vary with the vehicle speed and not drop out.

3. Operate the vehicle within the Conditions for Running 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.

Circuit/System Testing

Note: You must perform the Circuit/System Verification first.

1. Ignition OFF, remove the control valve body cover. Refer to Control Valve Body Cover Replacement (See: Transmission and