2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2102

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2102

Conditions for Running the DTC

* DTCs P0106, P0107, P0108, P0116, P0117, P0118, P0120, P0121, P0122, P0123, P0220, P0222, P0223, P0442, P0443, P0446, P0449,

P0451, P0452, P0453, P0454, P0464, P0608, P0609, P0641, P0651, P1516, P2101, P2119, P2120, P2122, P2123, P2125, P2127, P2128,

P2135, P2138 are not set.

* The ignition voltage is between 11-18 volts.

* The barometric pressure (BARO) is more than 74 kPa.

* The fuel level is between 15-85 percent.

* The engine coolant temperature (ECT) is less than 35掳C (95掳F).

* The intake air temperature (IAT) is between 4-30掳C (39-86掳F).

* DTC P0496 runs once per cold start when the above conditions are met.

Conditions for Setting the DTC

The ECM detects more than 10 inch H2O vacuum for 5 seconds during a non-purge condition.

Action Taken When the DTC Sets

DTC P0496 is a Type B DTC.

Conditions for Clearing the MIL/DTC

DTC P0496 is a Type B DTC.

Reference Information

Schematic Reference

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

Connector End View Reference

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

Electrical Information Reference

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

Testing/Circuit Testing)

* 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)

* Troubleshooting with a Test Lamp (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Circuit Testing/Troubleshooting with a Test Lamp)

* 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)

Description and Operation

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

Operation/Evaporative Emission Control System Description)

Scan Tool Reference

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

Circuit/System Verification

1. Ignition ON, engine OFF, seal the EVAP system using the Purge/Seal function with a scan tool.

2. Start the engine.

3. Observe the FTP sensor with a scan tool. The Fuel Tank Pressure Sensor parameter should be less than 1.7 volts after 90 seconds.

瀚慖f the Fuel Tank Pressure Sensor parameter is greater than the specified range, go to Circuit/System Testing.

4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed

from the Freeze Frame/Failure Records data.