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Home >> Cadillac >> 2021 >> CT5 V, 4WD >> Repair and Diagnosis >> General Information >> Reset Procedures >> Programming And Setup >> Repair Instructions >> P16 Instrument Panel Cluster Control Module: Programming and Setup >> Replace and Program ECU (UDD)
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Replace and Program ECU (UDD)

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

  1. Ignition ON/Vehicle in Service Mode.
  2. Access the Service Programming System (SPS) and follow the on-screen instructions.
  3. Ignition/Vehicle OFF.
  4. On the SPS Supported Controllers screen, select P16 Instrument Cluster - Programming and follow the on-screen instructions.
  5. On the SPS Supported Controllers screen, select P16 Instrument Cluster - Setup and follow the on-screen instructions.
  6. Clear DTCs.
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