The is a manufacturer-specific diagnostic trouble code indicating an ignition coil circuit malfunction for cylinders 1 and 4 . When this fault triggers, the Engine Control Unit (ECU) detects an open circuit, a short circuit to the earth, or an abnormal electrical signal in the ignition system. It frequently appears alongside its counterpart, DF362 (which controls cylinders 2 and 3). It impacts popular models equipped with Renault petrol engines like the Clio, Megane, Scenic, Logan, and Duster .
With the ignition off, unplug the ECU wiring harness connector and the ignition coil connector. Use your multimeter's continuity mode to map the wires connecting the ECU pinout directly to the coil connector.
The DF361 code is typically stored when the fault is present for just 4 seconds at idle speed (600 rpm) or 0.4 seconds at high speed (6000 rpm).
is a manufacturer-specific diagnostic trouble code (DTC) that indicates a failure in the Ignition Coil Control Circuit for Cylinders 1 and 4 .
| Repair | DIY Parts Cost (Estimated) | Professional Repair Cost (Parts & Labor) | | :--- | :--- | :--- | | | $20 – $50 | $100 – $200 | | Replace 1 Ignition Coil | $30 – $80 | $150 – $300 | | Replace All 4 Ignition Coils | $100 – $250 | $300 – $600 | | Wiring Harness Repair | $10 – $30 (materials) | $100 – $400+ | renault df361
If the code remains , the issue lies within the wiring harness, connector pins, or the ECU driver . Model Applicability Reference
Understanding Renault Fault Code DF361: Symptoms, Causes, and Solutions
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. In Renault’s ignition system (especially on common 1.4L and 1.6L 16V engines like the K4M), coils are often paired. This code indicates a malfunction—either an open circuit or a short circuit—in the line for the coils serving cylinders 1 and 4. It is frequently seen alongside , which refers to the circuit for ignition coils 2 and 3. Common Symptoms It impacts popular models equipped with Renault petrol
The most frequent culprit is internal breakdown of the ignition coil itself. Over time, heat cycles crack the coil casing or break down the internal copper windings. When resistance values drift outside factory parameters, the ECU flags the circuit. 2. Damaged or Corroded Wiring Harness
Replace faulty electrical connectors or individual injectors that are shorted.
In Renault's proprietary diagnostic language, DF361 directly translates to "Ignition coil control - cylinders 1 - 4". This means the ECU has identified a fault in the electrical pathway that controls the ignition coils for cylinders 1 and 4.
: Verify that the injection relay and ECU power supply fuses are intact, as a blown fuse can mimic a circuit failure. The DF361 code is typically stored when the
: The most frequent culprit is a physically degraded or internally shorted coil pack.
Always fill with high-quality diesel (e.g., Shell V-Power or BP Ultimate) every third tank. The additives help keep the piezo injectors clean.
Early DF361 engines had plastic swirl flaps in the intake manifold. These could detach and fall into the combustion chamber, destroying the engine. Check: By 2010, Renault updated to metal flaps, but 2007-2009 models are at risk.