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Home › Chevrolet › 2014 › Express 1500 LS, AWD › Repair and Diagnosis › Accessories & Equipment › Infotainment › Cellular System, Entertainment System, And Navigation System › Diagnostic Information and Procedures › OnStar Button LED Malfunction › Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, command the Green LED ON and OFF with a scan tool while observing the green LED on the OnStar® button assembly. The green LED should turn ON and OFF when commanded.
  2. Command the red LED ON and OFF with a scan tool while observing the red LED on the OnStar® button assembly. The red LED should turn ON and OFF when commanded.
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