2010 Cadillac Truck SRX FWD V6-3.0L Page 1691
Circuit/System Description
The output shaft sensor is a hall-effect type sensor. The sensor faces the output shaft machined teeth surface. As the output shaft rotates, the sensor
produces a signal frequency based on the machined surface of the output shaft. This signal is transmitted to the transmission control module (TCM).
The TCM uses the output shaft sensor signal in connection with the input speed sensor signal to control engine torque, shift timing, and lock-up.
Conditions for Running the DTC
P0722
* The ignition voltage is 10.2-15.5 V.
* The engine speed is greater than 400 RPM for 2 s.
* The transmission is not in emergency mode.
* TCM communication is normal.
* Driving in D range.
Conditions for Setting the DTC
P0722
* Deviation from calculated output speed is more than 300 RPM.
* No output speed sensor pulse while receiving pulses on the input speed sensor.
* No output speed sensor pulse when vehicle speed from ABS is more than 20 km/h (13 MPH) for 300 ms.
Action Taken When the DTC Sets
* DTC P0722 is Type A DTC.
* The TCM freezes transmission adaptive functions.
* 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
* DTC P0722 is Type A DTC.
* Output speed is greater than 300 RPM for more than 70 s.
* Deviation from calculated output speed is less than 5% for more than 1 s.
Diagnostic Aids
* Damage or misalignment of the counter drive gear machined teeth surface may cause a speed sensor malfunction.
* Proper torque of the output shaft sensor mounting bolt is critical to proper output shaft sensor operation.
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
