Sunday, January 12, 2020

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1362

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1362



Repairs/Wiring Repairs)



DTC Type Reference



Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code



(DTC) Type Definitions)



Scan Tool Reference



Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information



Special Tools



* J 41413-SPT High Intensity White Light



* J 41413-VLV EVAP Port Vent Fitting Tool



* J 41413-200 Evaporative Emissions System Tester (EEST)



* J 41413-300 EVAP Cap and Plug Kit



* CH-48096 EVAP Service Port Access Tool



* GE-41415-50 Fuel Tank Cap Adapter



Circuit/System Testing



1. Ignition OFF, remove the fuel fill cap. Connect the GE-41415-50 to the fuel tank filler neck. Connect the J 41413-200 to the GE-41415-50



.



2. Ignition ON, seal the system using the Purge Seal function with a scan tool.



3. Pressurize the EVAP system with nitrogen to 9.33 mm/Hg (5 in. H2O). Compare the scan tool Fuel Tank Pressure Sensor parameter to the J



41413-200 pressure/vacuum gauge. Verify the fuel tank pressure sensor parameter is within +/-0.9 mmHg (+/-0.5 in.H2O) of the



pressure/vacuum gauge.



瀚慖f not within the specified range, replace the B150 fuel tank pressure sensor.



4. Command the EVAP vent solenoid valve OPEN with a scan tool. Verify the scan tool Fuel Tank Pressure Sensor parameter is -0.9 to +0.9



mmHg (-0.5 to +0.5 in.H2O).



瀚慖f not within the specified range, replace the B150 fuel tank pressure sensor.



Repair Instructions



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



Fuel Tank Pressure Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Fuel Tank Pressure Sensor/Service and



Repair)



P0452



DTC P0452 or P0453 (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 Descriptors



DTC P0452



- Fuel Tank Pressure Sensor Circuit Low Voltage



DTC P0453



- Fuel Tank Pressure Sensor Circuit High Voltage



Diagnostic Fault Information

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