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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 127 (Sunroof) >> Diagnostic Information and Procedures >> Power Sunshade Malfunction (C3U) >> Component Testing

Component Testing

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.

Sunroof Switch

  1. Ignition OFF/Vehicle OFF, disconnect the harness connector at the A98 Front Overhead Console Assembly.
  2. Test for infinite resistance between the control terminals listed below and the low reference terminal 4.
    • A98 Front Overhead Console Assembly terminal 9
    • A98 Front Overhead Console Assembly terminal 10
    • If less than infinite resistance 

      Replace the A98 Front Overhead Console Assembly.

    • Go to next step: If infinite resistance 
  3. Test for less than 5 Ω between the control terminals listed below and the low reference terminal 4 with the switch in the appropriate position.
    • A98 Front Overhead Console Assembly terminal 9, sunroof switch CLOSE position
    • A98 Front Overhead Console Assembly terminal 9, sunroof switch OPEN position
    • A98 Front Overhead Console Assembly terminal 10, sunshade switch OPEN position
    • A98 Front Overhead Console Assembly terminal 10, sunshade switch CLOSE position
    • If not less than 5 Ω 

      Replace the A98 Front Overhead Console Assembly.

    • Go to next step: If less than 5 Ω 
  4. All OK.