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Home >> GMC >> 2017 >> Canyon SL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Memory Modules >> Secondary And Configurable Customer Control System >> Diagnostic Information and Procedures >> DTC B3622: Steering Wheel Controls Signal Circuit >> Circuit/System Verification

Circuit/System Verification

  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.
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