Wednesday, July 20, 2022

2010 Cadillac Truck SRX FWD V6-3.0L Page 996

2010 Cadillac Truck SRX FWD V6-3.0L Page 996



* Water intrusion in the B52 HO2S harness connector



* Low or high fuel system pressure-Refer to Fuel System Diagnosis (LF1 China) (See: Powertrain Management/Fuel Delivery and Air



Induction/Fuel Pump/Testing and Inspection/Fuel System Diagnosis (China))Fuel System Diagnosis (LF1 Except China) (See:



Powertrain Management/Fuel Delivery and Air Induction/Fuel Pump/Testing and Inspection/Fuel System Diagnosis (Except China))Fuel



System Diagnosis (LAU China) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Pump/Testing and Inspection/Fuel



System Diagnosis (China))Fuel System Diagnosis (LAU Except China) (See: Powertrain Management/Fuel Delivery and Air



Induction/Fuel Pump/Testing and Inspection/Fuel System Diagnosis (Except China)).



* Fuel that is contaminated-Refer to Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool) (See: Powertrain Management/Fuel Delivery



and Air Induction/Fuel/Testing and Inspection/Alcohol/Contaminants-in-Fuel Diagnosis (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)



* 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)



* 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)



* 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)



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



P014B



DTC P0133, P013A-P013F, P014A, P014B, P0153, P1133, or P1153 (LF1)



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 P0133



- HO2S Slow Response Bank 1 Sensor 1



DTC P013A



- HO2S Slow Response Rich to Lean Bank 1 Sensor 2



DTC P013B



- HO2S Slow Response Lean to Rich Bank 1 Sensor 2



DTC P013C



- HO2S Slow Response Rich to Lean Bank 2 Sensor 2



DTC P013D



- HO2S Slow Response Lean to Rich Bank 2 Sensor 2

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