LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 18 (Lighting System) >> Diagnostic Information and Procedures >> Park, License, and/or Tail Lamps Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, observe the scan tool Park Lamp Switch parameter while cycling the park lamp switch ON and OFF. The readings should toggle between Active and Inactive.
    • If the readings do not change between the commanded states, refer to Park Lamp Switch Malfunction.
  2. Ignition ON, command the Parking Lamps ON and OFF with a scan tool. The park, license, and marker lamps should turn ON and OFF when changing between the commanded states.
    • If the lamps do not turn ON and OFF when changing between the commanded states, refer to Park Lamp Malfunction.
scientia non olet · About LEMON Manuals