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Home >> GMC >> 2016 >> Canyon SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 113 (Secondary And Configurable Customer Control System) >> Diagnostic Information and Procedures >> DTC B3622: Steering Wheel Controls Signal Circuit >> Circuit/System Verification
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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. Ignition ON. Verify the driver information center (DIC) illuminates.
    • If the DIC does not illuminate 

      Test or replace the instrument cluster.

    • If the DIC does illuminate 
  2. Verify all the associated primary controls on the radio (Volume, Mute, Seek, etc.) operate properly.
    • If all of the primary controls function properly 
  3. Refer to Circuit/System Testing.