2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2069

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2069

* Evaporative Emission System Hose/Pipe Replacement (2500 LWB - Intermediate) (See: Powertrain Management/Emission Control

Systems/Evaporative Emissions System/Evaporative Emissions Hose/Service and Repair/Evaporative Emission System Hose/Pipe

Replacement (2500 LWB - Intermediate))Evaporative Emission System Hose/Pipe Replacement (2500 LWB - 98.4L (26 gal) Tank-Front) (

See: Powertrain Management/Emission Control Systems/Evaporative Emissions System/Evaporative Emissions Hose/Service and

Repair/Evaporative Emission System Hose/Pipe Replacement (2500 LWB - 98.4L (26 gal) Tank-Front))

* Evaporative Emission Canister Vent Solenoid Valve Replacement (1500 Series) (See: Powertrain Management/Emission Control

Systems/Evaporative Emissions System/Evaporative Emission Control Canister/Canister Vent Valve/Service and Repair/Evaporative

Emission Canister Vent Solenoid Valve Replacement (1500 Series))Evaporative Emission Canister Vent Solenoid Valve Replacement (2500

Series) (See: Powertrain Management/Emission Control Systems/Evaporative Emissions System/Evaporative Emission Control

Canister/Canister Vent Valve/Service and Repair/Evaporative Emission Canister Vent Solenoid Valve Replacement (2500 Series))

* Evaporative Emission Canister Replacement (1500 Series) (See: Powertrain Management/Emission Control Systems/Evaporative Emissions

System/Evaporative Emission Control Canister/Service and Repair/Evaporative Emission Canister Replacement (1500 Series))Evaporative

Emission Canister Replacement (2500 Series) (See: Powertrain Management/Emission Control Systems/Evaporative Emissions

System/Evaporative Emission Control Canister/Service and Repair/Evaporative Emission Canister Replacement (2500 Series))

* Evaporative Emission Line Replacement - Engine (See: Powertrain Management/Emission Control Systems/Evaporative Emissions

System/Evaporative Emissions Hose/Service and Repair)

* Evaporative Emission Line Replacement - Chassis (2500 Series) (See: Powertrain Management/Emission Control Systems/Evaporative

Emissions System/Evaporative Emissions Hose/Service and Repair/Evaporative Emission Line Replacement - Chassis (2500 Series)

)Evaporative Emission Line Replacement - Chassis (1500 Series) (See: Powertrain Management/Emission Control Systems/Evaporative

Emissions System/Evaporative Emissions Hose/Service and Repair/Evaporative Emission Line Replacement - Chassis (1500 Series))

* Evaporative Emission System Cleaning (See: Powertrain Management/Emission Control Systems/Evaporative Emissions System/Service

and Repair)

* Fuel Tank Pressure Sensor Replacement (1500 LWB - 117.3L (31 gal) Tank + E85) (See: Powertrain Management/Computers and Control

Systems/Fuel Tank Pressure Sensor/Service and Repair/Fuel Tank Pressure Sensor Replacement (1500 LWB - 117.3L (31 Gal) Tank + E85)

)Fuel Tank Pressure Sensor Replacement (2500 Series) (See: Powertrain Management/Computers and Control Systems/Fuel Tank Pressure

Sensor/Service and Repair/Fuel Tank Pressure Sensor Replacement (2500 Series))Fuel Tank Pressure Sensor Replacement (1500 Series) (

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

Replacement (1500 Series))Fuel Tank Pressure Sensor Replacement (1500 SWB - 98.4L (26 gal) Tank + E85) (See: Powertrain

Management/Computers and Control Systems/Fuel Tank Pressure Sensor/Service and Repair/Fuel Tank Pressure Sensor Replacement (1500

SWB - 98.4L (26 Gal) Tank + E85))

* Control Module References (See: Testing and Inspection/Programming and Relearning)

Repair Verification

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

With the engine running, the EVAP canister vent solenoid valve open and the EVAP canister purge solenoid valve commanded to 100 percent, the

fuel tank vacuum should not increase to more than -15 mmHg (-8 inches H2O).

P0449

DTC P0443 or P0449

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 P0443

- Evaporative Emission (EVAP) Purge Solenoid Control Circuit

DTC P0449

- Evaporative Emission (EVAP) Vent Solenoid Control Circuit

Diagnostic Fault Information