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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 1.0L (L4B L4F L4G LIJ) Or 1.2L (L4H L4K LIF LIH) - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> DTC P0449, P0498, or P0499 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different variant/trim than selected.

For an overview of the component/system, refer to Evaporative Emission Control System Description

Circuit Description
B+ Supplied from a fuse.
Control The output circuit is switched to ground to activate the component.
Component Description
K111 Fuel Pump Driver Control Module The control module contains a microprocessor used to process input data to control outputs.
The control module communicates with the engine control module via serial data.
Q13 Evaporative Emission Vent Solenoid Valve A solenoid valve is an electro-mechanically operated valve. The valve is controlled by an electric current through the solenoid.
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