Dtc B123a Renault -

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.

🔧 "Driver’s side pretensioner circuit resistance too high" – usually related to the seat belt pretensioner or wiring under the driver’s seat. 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) 1️⃣ Check & clean the yellow connector under

🚗 Megane, Clio, Scenic, Laguna, Captur. dtc b123a renault