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Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> DTC P27EF, P27F1 Or P27F2: Transmission Range Control Valve 2 Position Switch Circuit >> Circuit/System Description

Circuit/System Description

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Circuit Description
9 V Reference Regulated voltage supplied by the control module.
Signal The control module input circuit has an internal resistance connected to ground.
Component Description
Transmission Range Control Valve 2 Position Switch A linear hall effect sensor that changes current flow based on the magnetic field's position relative to the sensor.
K71 Transmission Control Module The control module contains a microprocessor used to process input data to control outputs.

The B315B Transmission Range Control Valve 2 Position Switch monitors the position of the Mode 1 Electronic Transmission Range Selector Valve