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
