Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 77 (SUNROOF SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B3664COMPONENT TESTINGSTATIC TEST
2013 Buick Regal Turbo Premium, Standard Trans
Static Test
2013 Buick Regal Turbo Premium, Standard TransSECTION 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.
- Ignition OFF, disconnect the harness connector at the S72 sunroof switch.
- Test for 3.6-3.7k Ξ© between the switch terminals 1 and 4.
- If not within the specified range, replace the S72 sunroof switch.
- Test for 430-440 Ξ© 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.
- Test for 96-100 Ξ© 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.
- Test for 1.7-1.8k Ξ© 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.
- Test for 930-940 Ξ© 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.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.