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Home >> Chevrolet >> 2010 >> Traverse LS, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays & Gauges >> Diagnostic Information and Procedures >> Head Up Display (HUD) Malfunction >> Circuit/System Testing >> HUD Switch Malfunction

HUD Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the HUD switch assembly.
  2. Ignition OFF, test for less than 5 ohms between the low reference terminal 3 and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance.
  3. Ignition ON, verify that all of the scan tool HUD Switch parameters are Inactive.
    • If any is not Inactive, test the signal circuit terminal 6 for a short to ground. If the circuit tests normal, replace the HUD.
  4. Ignition ON, install a 3-amp fused jumper wire between the signal circuit terminal 6 and ground. Verify the scan tool HUD Switch parameters are Active.
    • If any are not Active, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the HUD.
  5. If all the circuits test normal, test or replace the HUD switch assembly.
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