Renault Df357 [upd] Guide

When this code is active, it indicates a communication issue on the vehicle's "multiplex" network (CAN bus) related to the brake switch. Because this signal is used by multiple systems, you may notice several secondary symptoms:

: On some newer Renault models, this code can refer to a "Display Supply Circuit" fault, suggesting a wiring or power issue to the central screen. Recommended Next Steps renault df357

: If the car isn't sure where the brake pedal is, it will disable cruise control for safety. The Investigation: Why is it happening? When this code is active, it indicates a

These often follow DF357 and indicate that the ABS and ESP systems have been disabled as a precaution. The Investigation: Why is it happening

: In models like the Renault Megane , DF357 is often associated with the CVT control system. It can indicate a communication error or a sensor fault within the gearbox module.

Inspect the wheel speed sensors for physical damage or debris. Many owners have resolved the issue by replacing a dead sensor, specifically after testing them by swapping positions to see if the fault follows the sensor.

: Drivers may notice unusual shifting patterns or a lack of responsiveness when accelerating. Diagnostic Challenges