LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2020 >> Bolt EV LT >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Immobilizer System >> Diagnostic Information and Procedures >> DTC P1649 >> Circuit/System Description

Circuit/System Description

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

Component Description
K9 Body Control Module Depending on the version, the control module can support different functions:
  • Immobilizer Function
  • Horn
  • Central Door Locking
  • Power Mode Control
  • Ignition Key/Shifter Interlock

The control module also reads various switches and sensors and makes their values available via serial data.
K20 Engine Control Module The control module contains a microprocessor used to process input data to control outputs.
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.