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 DIAGNOSISBODY & FRAMESEATSSEAT HEATING SYSTEM AND SEAT COOLING SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC B242ACIRCUIT/SYSTEM TESTING
2013 Buick Regal Turbo Premium, Standard Trans
Circuit/System Testing
2013 Buick Regal Turbo Premium, Standard TransSECTION Circuit/System Testing
- Ignition OFF, disconnect the X2 harness connector at the K29 seat heating control module.
- Test for infinite resistance between the control circuit terminals listed below and ground:
- Terminal 3
- Terminal 5
- If less than infinite resistance
Repair the short to ground on the circuit.
- If infinite resistance
- Ignition ON.
- Test for less than 1 V between the control circuit terminals listed below and ground:
- Terminal 3
- Terminal 5
- If 1 V or greater
Repair the short to voltage on the circuit.
- If less than 1 V
- Replace the K29 seat heating control module.
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.