is a manufacturer-specific diagnostic trouble code that signifies an ignition coil control circuit fault for cylinders 1 and 4 . When the Engine Control Unit (ECU) triggers this code, it detects an irregular electrical signal, open circuit, or short circuit within the primary ignition circuit responsible for firing those specific cylinders. This problem frequently impacts popular models like the Renault Clio, Megane, Logan, Kangoo, and Sandero.
Because Renault engines traditionally use a wasted-spark ignition setup or paired-coil configurations (where cylinders 1 and 4 share a control circuit), a glitch in this line can immediately disable two cylinders. This leads to severe engine misfires or an outright non-start condition. Key Symptoms of Fault Code DF361 renault dtc df361
| Cause Category | Specific Fault | |----------------|----------------| | | Corrosion, broken wire, or poor pin contact between ECU and injector 1. High resistance in the injector return line. | | Injector 1 Failure | Open circuit in the injector solenoid coil. Short circuit to ground or battery voltage. Internal mechanical jamming causing electrical feedback change. | | ECU Hardware Fault | Failed injector driver chip (MOSFET/IGBT) inside the ECU. Damaged shunt resistor for current monitoring. | | Power Supply Issue | Unstable 5V or 12V reference voltage to the injector driver stage (often due to failing alternator or battery). | | Software / Coding | After replacing an injector, the injector correction code (IMV code) was not programmed into the ECU. | High resistance in the injector return line
is a reliable indicator of an electrical fault in the injector 1 circuit. While it can occasionally point to the ECU, the overwhelming majority of confirmed repairs point to: shake violently at idle
Modern Renault diesel engines (especially Common Rail systems from Delphi or Siemens) monitor the electrical feedback from each injector’s piezoelectric or solenoid actuator. When the ECU sends a command to open an injector, it expects to see a precise voltage or current decay pattern on the return circuit.
The vehicle will stutter, shake violently at idle, or hesitate severely under acceleration.