2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1041

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1041



10. If all circuits/connections test normal, replace the B75 MAF sensor.



Repair Instructions



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



* Mass Airflow Sensor with Intake Air Temperature Sensor Replacement (LF1) (See: Powertrain Management/Computers and Control



Systems/Air Temperature Sensor ( Ambient / Intake )/Service and Repair)Mass Airflow Sensor with Intake Air Temperature Sensor



Replacement (LAU) (See: Powertrain Management/Computers and Control Systems/Air Temperature Sensor ( Ambient / Intake )/Service



and Repair)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for engine control module replacement, setup, and



programming



P0101



DTC P0101 (LAU)



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 Descriptor



DTC P0101



- Mass Air Flow (MAF) Sensor Performance



Diagnostic Fault Information



Typical Scan Tool Data



Circuit/System Description



The mass air flow (MAF) sensor is located in the air intake duct. The MAF sensor is an airflow meter that measures the amount of air that enters the



engine. The MAF sensor uses a hot film that is cooled by air flowing past the sensing film as air enters the engine. The amount of cooling is



proportional to the amount of the air flow. As the air flow increases, more current is required in order to maintain the hot film at a constant



temperature. The engine control module (ECM) uses the MAF sensor in order to provide the correct fuel delivery for all operating conditions.



Conditions for Running the DTCs



* DTCs P0102, P0103, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0128, P0335 or P0336 are not set.



* The engine is running.



* The engine coolant is between 69-127掳C (156-261掳F).



* The intake air temperature is between -20 and +125掳C (-4 and +257掳F).



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



Conditions for Setting the DTC

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