2010 Cadillac Truck SRX FWD V6-3.0L Page 1866

2010 Cadillac Truck SRX FWD V6-3.0L Page 1866

3. Exit from the scan tool snapshot and review the data.

4. Observe the MAF Sensor g/s parameter frame by frame with a scan tool. The MAF Sensor g/s parameter should change smoothly and

gradually as the engine speed is increased and then returned to idle.

瀚慖f the MAF Sensor g/s parameter does not change smoothly and gradually, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See:

Diagnostic Trouble Code Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle) for DTC P0101.

6. If all conditions test normal, test the engine for a mechanical condition. Refer to Symptoms - Engine Mechanical (See: Engine, Cooling and

Exhaust/Engine/Testing and Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine Mechanical).

Repair Instructions

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

* Throttle Body Assembly Replacement (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Throttle Body/Service and

Repair/Removal and Replacement)Throttle Body Assembly Replacement (LAU) (See: Powertrain Management/Fuel Delivery and Air

Induction/Throttle Body/Service and Repair/Removal and Replacement)

* Air Cleaner Element Replacement (LF1) (See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance Checks/Air Cleaner

Housing/Air Filter Element/Service and Repair)Air Cleaner Element Replacement (LAU) (See: Engine, Cooling and

Exhaust/Engine/Tune-up and Engine Performance Checks/Air Cleaner Housing/Air Filter Element/Service and Repair)

P1133

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

DTC P013E

- HO2S Delayed Response Rich to Lean Bank 1 Sensor 2

DTC P013F

- HO2S Delayed Response Lean to Rich Bank 1 Sensor 2

DTC P014A

- HO2S Delayed Response Rich to Lean Bank 2 Sensor 2

DTC P014B

- HO2S Delayed Response Lean to Rich Bank 2 Sensor 2

DTC P0153

- HO2S Slow Response Bank 2 Sensor 1

DTC P1133

- HO2S Insufficient Switching Bank 1 Sensor 1