⚠️ Always disconnect the battery for 15+ minutes before touching any SRS component!
1️⃣ Check & clean the yellow connector under the driver’s seat. 2️⃣ Inspect wires for breaks or pinches. 3️⃣ Reset the fault with a diagnostic tool (OBD scanner with SRS support). 4️⃣ If code returns, test pretensioner resistance (2–3 ohms is normal). 5️⃣ Replace pretensioner if out of spec. dtc b123a renault
Got the dreaded fault code on your Renault? ⚠️ Always disconnect the battery for 15+ minutes
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Renault [model/year] Code: B123A – Driver’s seat belt pretensioner circuit resistance too high. dtc b123a renault
✅ Loose or corroded connector under the driver’s seat ✅ Damaged wiring (often from seat movement) ✅ Faulty seat belt pretensioner ✅ Airbag/SRS control unit internal error (less common)