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2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1081

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1081



P0221



* The engine speed is greater than 480 RPM.



* The vehicle speed is 0 km/h (0 mph).



* The engine coolant temperature is greater than 5掳C (41掳F).



* The ignition voltage is greater than 8 V.



* The intake air temperature is greater than 5掳C (41掳F).



* DTC P0221 runs continuously when the above conditions are met.



Conditions for Setting the DTC



P0121



The throttle position sensor 1 disagrees greater than 9 % from throttle position sensor 2, or throttle position sensor 1 disagrees greater than 9 %



from the predicted value for greater than 1 s or a cumulative of 4 s.



P0122



The ECM detects the throttle position sensor 1 signal voltage is less than 0.18 V for greater than 1 s or a cumulative of 4 s.



P0123



The ECM detects the throttle position sensor 1 signal voltage is greater than 4.6 V for greater than 1 s or a cumulative of 4 s.



P0221



The throttle position sensor 2 disagrees greater than 9 % from throttle position sensor 1, or throttle position sensor 2 disagrees greater than 9 %



from the predicted value for greater than 1 s or a cumulative of 4 s.



P0222



The ECM detects the throttle position sensor 2 signal voltage is less than 0.16 V for greater than 1 s or a cumulative of 4 s.



P0223



The ECM detects the throttle position sensor 2 signal voltage is greater than 4.9 V for greater than 1 s or a cumulative of 4 s.



Action Taken When the DTC Sets



* DTCs P0121 and P0221 are Type B DTCs.



* DTCs P0122, P0123, P0222, and P0223 are Type A DTCs.



Conditions for Clearing the DTC



* DTCs P0121 and P0221 are Type B DTCs.



* DTCs P0122, P0123, P0222, and P0223 are Type A DTCs.



Diagnostic Aids



If there is a condition with the throttle position sensors, the ECM defaults to reduced power mode for the entire ignition cycle, even if the condition



is corrected.



Reference Information



Schematic Reference



Engine Controls Schematics (LAU) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)Engine Controls Schematics



(LF1) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)



Connector End View Reference



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



Description and Operation



Throttle Actuator Control (TAC) System Description (See: Powertrain Management/Computers and Control Systems/Description and



Operation/Throttle Actuator Control (TAC) 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)

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