2010 Cadillac CTS Sedan AWD V6-3.6L Page 863

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2010 Cadillac CTS Sedan AWD V6-3.6L Page 863



Diagnostics/Alcohol/Contaminants-in-Fuel Diagnosis (with Special Tool))Alcohol/Contaminants-in-Fuel Diagnosis (without Special



Tool) (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests and General



Diagnostics/Alcohol/Contaminants-in-Fuel Diagnosis (without Special Tool))



* Fuel saturation of the evaporative emission (EVAP) canister



* Exhaust leaks near the B52 HO2S



* Engine vacuum leaks



* Engine oil consumption-Refer to Oil Consumption Diagnosis (See: Engine, Cooling and Exhaust/Engine/Testing and



Inspection/Component Tests and General Diagnostics/Oil Consumption Diagnosis)



* Engine coolant consumption-Refer to Loss of Coolant (See: Engine, Cooling and Exhaust/Cooling System/Testing and



Inspection/Symptom Related Diagnostic Procedures/Loss of Coolant)



瀚慖f you find any of the above conditions, repair as necessary.



2. If all conditions test normal, test or replace the appropriate B52 HO2S.



Repair Instructions



Caution: Refer to Heated Oxygen Sensor Resistance Learn Reset Caution (See: Powertrain Management/Computers and Control



Systems/Oxygen Sensor/Service Precautions/Heated Oxygen Sensor Resistance Learn Reset Caution).



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (LF1) (See: Powertrain Management/Computers and Control Systems/Oxygen



Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (LLT) (See: Powertrain Management/Computers and



Control Systems/Oxygen Sensor/Service and Repair)



* Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (LF1) (See: Powertrain Management/Computers and Control Systems/Oxygen



Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (LLT) (See: Powertrain Management/Computers and



Control Systems/Oxygen Sensor/Service and Repair)



* Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (LF1) (See: Powertrain Management/Computers and Control Systems/Oxygen



Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (LLT) (See: Powertrain Management/Computers and



Control Systems/Oxygen Sensor/Service and Repair)



* Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (LF1) (See: Powertrain Management/Computers and Control Systems/Oxygen



Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (LLT) (See: Powertrain Management/Computers and



Control Systems/Oxygen Sensor/Service and Repair)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming



P013E



DTC P013A, P013C, P013E, or P014A (LLT)



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC P013A



- HO2S Slow Response Rich to Lean Bank 1 Sensor 2



DTC P013C



- HO2S Slow Response Rich to Lean Bank 2 Sensor 2



DTC P013E



- HO2S Delayed Response Rich to Lean Bank 1 Sensor 2



DTC P014A



- HO2S Delayed Response Rich to Lean Bank 2 Sensor 2



Diagnostic Fault Information

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