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.
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HOMESERVICE MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTILOCK BRAKE SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC B2745COMPONENT TESTING
2013 Buick Regal Turbo Premium, Standard Trans
Component Testing
2013 Buick Regal Turbo Premium, Standard TransSECTION Component Testing
- Ignition OFF, disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel.
- Test for infinite resistance between the signal circuit terminal 7 and the ground circuit terminal 2 with the switch in the open position.
- If less than infinite resistance
Replace the S48D Multifunction Switch 2 - Instrument Panel.
- If infinite resistance
- If less than infinite resistance
- Test for less than 2 Ω between the signal circuit terminal 7 and the ground circuit terminal 2 with the switch in the pressed or closed position.
- If 2 Ω or greater
Replace the S48D Multifunction Switch 2 - Instrument Panel.
- If less than 2 Ω
- If 2 Ω or greater
- All OK.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.