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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 P0446 >> 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 pressure sensor is a 3 wire piezoelectric pressure transducer.
K20 Engine Control Module The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly.