LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2020 >> Envision Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 182 (Cellular, Entertainment, And Navigation System) >> Diagnostic Information and Procedures >> DTC B124F >> Circuit/System Verification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Verification

WARNING: This page is about a different car, the 2020 Buick Regal TourX, 2020 Buick Regal, 2019 Buick Regal TourX, and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON/vehicle in Service Mode.
  2. Verify DTC B124F is not set.
    • If DTC B124F is set 
    1. Program the device that set the DTC.
    2. Verify the DTC does not set.
      • If DTC is set, replace the device that set the DTC.
      • Go to next step: If the DTC is not set
    3. All OK.
    • Go to next step: If DTC B124F is not set 
  3. All OK
scientia non olet · About LEMON Manuals