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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (4 Of 5)) >> Diagnostic Information and Procedures >> DTC P129F >> 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

Component Description
A7 Fuel Tank Fuel Pump Module 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.
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.
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