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Home >> GMC >> 2021 >> Terrain Denali, FWD >> Repair and Diagnosis >> General Information >> Reset Procedures >> Programming And Setup >> Repair Instructions >> B218L Side Object Sensor Module - Left: Programming and Setup >> Replace and Program ECU or Reprogram ECU
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Replace and Program ECU or Reprogram ECU

To program a replacement or an existing ECU, perform the following procedure:

NOTE:
  • Due to continuous improvements, the on screen selections may vary from instructions below.
  • It is recommended to program both the left and right (if programmable) when a programming event is required.
  • Some systems only have one programmable Side Object Sensor Module.
  1. Access the Service Programming System (SPS) and follow the on-screen instructions.
  2. On the SPS Supported Controllers screen, select B218L/R Side Object Sensor Module or B218R Right Side Object Sensor Module or B218L Left Side Object Detection.
  3. On the SPS Select Function / Sequence screen, select Sequential Programming or Programming
  4. Clear DTCs.