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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 120 (Engine Controls And Fuel - 1.5L (LFV) - DTC P034A-DTC P31BF And Symptoms) >> Diagnostic Information and Procedures >> DTC P1176 or P1177 >> 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:Fuel System Description

Circuit Description
5 V Reference Regulated voltage supplied by the control module.
Component Description
B47 Fuel Pressure Sensor The sensor measures the pressure in the component:Fuel Line
The signal voltage increases when the pressure increases.
B150 Fuel Tank Pressure Sensor The pressure sensor generates an analog signal output proportional to a pressure input and the reference voltage.
The pressure sensor measures fuel tank vapor space pressure then converts the information to an electrical output.
K111 Fuel Pump Driver Control Module The control module contains a microprocessor used to process input data to control outputs.
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