2010 Cadillac Truck SRX FWD V6-3.0L Page 1512

2010 Cadillac Truck SRX FWD V6-3.0L Page 1512

* Individual components can be isolated and tested using adapters in the J 41413-300 - Kit.

* A condition may exist where a leak in the EVAP system only exists under a vacuum condition. This type of leak may be detected by using

the scan tool EVAP Purge/Seal function to create a vacuum in the EVAP system and then observe the fuel tank pressure parameter for

vacuum decay.

Reference Information

Schematic Reference

Engine Controls Schematics (LAU) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)Engine Controls Schematics

(LF1) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Evaporative Emission Control System Description (See: Powertrain Management/Computers and Control Systems/Description and

Operation/Evaporative Emission Control System Description)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

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

* CH 48096 - Evaporative Emissions Service Access Port Tool

* J 41415-30 - Fuel Tank Adapter

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

* J 41413-300 - Evaporative Emissions Cap and Plug Kit

* J 41413-311 - Evaporative Emissions Plug

* J 41413-SPT - High Intensity White Light

* J 41413-VLV - Evaporative Emissions Service Port Vent Tool

* For equivalent regional tools, refer to Special Tools (See: Powertrain Management/Computers and Control Systems/Tools and Equipment).

Circuit/System Testing

Note:

* Larger volume fuel tanks and/or those with lower fuel levels may require several minutes for the floating indicator to stabilize.

* Refer to the J 41413-200 - EEST operation manual for detailed instructions in Evaporative Emission System Diagnosis (See: Powertrain

Management/Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Evaporative Emission

System Diagnosis).

1. Connect the J 41413-200 - EEST to the vehicle evaporative emission purge tube. Disconnect the purge tube at the quick connector on the

evaporative emission canister side of the Q12 evaporative emission canister purge solenoid valve and install the CH 48096 - Port Tool.

2. Use a scan tool to seal the evaporative emission system.

3. Use the flow meter on the J 41413-200 - EEST , calibrated to 0.51 millimeter (0.020 inch) to determine that there is no leak in the

evaporative emission system.

瀚慖f a leak is detected, use the J 41413-200 - EEST to apply smoke to the evaporative emission system at the purge tube until the leak is

located using the J 41413-SPT - White Light.

4. To test for a restriction, connect the J 41413-200 - EEST nitrogen/smoke hose to the to the J 41413-311 - Evaporative

Emission Plug brass cone adapter. Disconnect the hose at the fuel cap end of the J 41415-30 - Adapter. Connect the J 41413-311 - Evaporative

Emission Plug to the disconnected hose on the J 41415-30 - Adapter. Install the J 41415-30 - Adapter filler neck end only to the vehicle.

5. Allow the engine to idle.

6. Use the Purge/Seal function to seal the system with a scan tool.

7. Command the evaporative emission canister purge solenoid valve to 30 percent.

8. The vacuum/pressure gauge on the J 41413-200 - EEST and the fuel tank pressure parameter on the scan tool should both show vacuum.