LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 2016 >> Canyon SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> Radio Controls Malfunction (IOB) >> 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 2017 GMC Canyon and 2017 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify DTC B123E is not set.
    • If DTC B123E is not set 
  2. Ignition ON/vehicle in Service Mode, A11 Radio ON.
  3. Verify that all radio controls operate and perform the correct function.
    • If all or some of the radio controls are inoperative 

      Refer to Circuit/System Testing.

    • If all radio controls operate and perform the correct function. 
  4. All OK.