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Home >> Chevrolet >> 2023 >> Camaro ZL1, 2D Convertible, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (Engine Controls And Fuel - 3.6L - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> DTC P2635 >> 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: Fuel System Description

Circuit Description
Control The output circuit is switched to 12 V to activate the component.
Low Reference Grounded through the control module.
Component Description
A7 Fuel Tank Fuel Pump Module Pump Motor 
The component has a 3-phase motor. The control module converts the DC voltage from the battery to 3-phase AC to power the motor.
Sensor 
A float in the fuel tank is attached to a potentiometer-type variable resistor. The voltage drop over this resistor is used by the fuel gauge in the instrument cluster.
K111 Fuel Pump Power 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.

When the ignition is turned On, the ECM sends a 12 V signal to the control module K209 to enable the fuel pump. If the engine is not started, the control module K209 turns the fuel pump Off after 6 s.

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