LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (Fixed And MOVEABLE Windows) >> Diagnostic Information and Procedures >> Rear Window Defogger Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On / Vehicle - In Service Mode
  2. Operate the component: Rear Defogger Switch - Pressed

    Verify the scan tool parameter: Rear Defogger Switch = Off & On

    • If not the specified state 

      Replace the component: A26 HVAC Controls

    • Go to next step: If the specified state 
  3. Perform the scan tool control function: Rear Defogger - On and Off

    Verify the component turns On and Off: E18 Rear Defogger Grid

    • If the component does not turn On and Off 

      Refer to: Circuit/System Testing

    • Go to next step: If the component turns On and Off 
  4. Operate the component: Rear Defogger Switch - Pressed
  5. Verify the component turns On and Off: Rear Defogger Indicator
    • If the component does not turn On and Off 

      Replace the component: A26 HVAC Controls

    • Go to next step: If the component turns On and Off 
  6. All OK.
scientia non olet · About LEMON Manuals