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HOMESERVICE MANUALSCHEVROLET2019BLAZER PREMIER, FWDREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSVEHICLE ACCESS SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC B153E - LIFTGATE ANGLE SENSOR MALFUNCTIONCIRCUIT/SYSTEM DESCRIPTION
2019 Chevrolet Blazer Premier, FWD

Circuit/System Description

2019 Chevrolet Blazer Premier, FWDSECTION Circuit/System Description

For an overview of the component/system, refer to: Liftgate Description and Operation 

Circuit Description
12 V Reference Regulated voltage supplied by the control module.
Liftgate Position Sensor 1 Signal Circuit The control module input circuit has an internal resistance connected to 12 V.
Liftgate Position Sensor 2 Signal Circuit The control module input circuit has an internal resistance connected to 12 V.
Low Reference Grounded through the control module.
Component Description
M17 Liftgate Motor Assembly
  • The motor M17 is a bidirectional DC motor that moves the component: Power Liftgate (TB5)
  • The assembly also contains a 4-wire hall effect current sensor.
  • When the sensor measures increased electrical current, the control module can detect that the component has reached an endstop.
K39 Liftgate Control Module The control module K39 controls the liftgate motor function depending on inputs from a variety of sensors, switches and serial data information from other control modules.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.