LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2012 >> Regal Base >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 249 (Sunroof System) >> Diagnostic Information and Procedures >> DTC B3664 >> Component Testing >> Static Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Static Test

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the S72 sunroof switch.
  2. Test for 3.6-3.7k Ω between the switch terminals 1 and 4.
    • If not within the specified range, replace the S72 sunroof switch.
  3. Test for 430-440 Ω between the signal terminal 1 and the low reference circuit terminal 4 while pressing the open switch.
    • If not within the specified range, replace the S72 sunroof switch.
  4. Test for 96-100 Ω between the signal terminal 1 and the low reference circuit terminal 4 while pressing the express open switch.
    • If not within the specified range, replace the S72 sunroof switch.
  5. Test for 1.7-1.8k Ω between the signal terminal 1 and the low reference circuit terminal 4 while pressing the close switch.
    • If not within the specified range, replace the S72 sunroof switch.
  6. Test for 930-940 Ω between the signal terminal 1 and the low reference circuit terminal 4 while pressing the express close switch.
    • If not within the specified range, replace the S72 sunroof switch.
scientia non olet · About LEMON Manuals