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Home >> GMC >> 2021 >> Yukon AT4 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel And Console Trim - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Power Sliding Center Console Malfunction >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the K230 Front Floor Console Control Module.
  2. Verify a test lamp illuminates between ground circuit terminal 1 and B+.
    • If the test lamp does not illuminate 
    1. Repair the open/high resistance on circuit 1250 or the ground connection.
    • Go to next step: If the test lamp illuminates 
  3. Ignition ON/vehicle in service mode, verify a test lamp illuminates between B+ circuit terminal 2 and ground.
    • If the test lamp does not illuminate and the circuit fuse is OK 
    1. Test circuit 8640 for an open/high resistance.
      • If an open/high resistance is found, repair the fault on the circuit.
      • If an open/high resistance is not found, verify there is voltage at the fuse.
    • If the test lamp does not illuminate and the circuit fuse is open 
    1. Test circuit 8640 for a short to ground.
      • If a short to ground is found, repair the fault on the circuit.
      • Go to next step: If a short to ground is not found.
    2. Replace the K230 Front Floor Console Control Module.
    • Go to next step: If the test lamp illuminates 
  4. Test or replace the K230 Front Floor Console Control Module
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