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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Engine Controls And Fuel - 2.0L (LTG) - DTC P0340-DTC P31BF And Symptoms) >> Diagnostic Information and Procedures >> DTC P0451-P0454 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

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

Circuit Description
5 V Reference Regulated voltage supplied by the control module.
Signal The control module input circuit has an internal resistance connected to ground.
Low Reference Grounded through the control module.
Component Description
B150 Fuel Tank Pressure Sensor The sensor measures the pressure in the component:Fuel Tank
K111 Fuel Pump Driver Control Module The control module K111 supplies the fuel pump with a PWM signal in order to achieve the desired fuel line pressure.
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