Renault Df104 May 2026

Disconnect the battery (wait 15 minutes for the system to discharge) and use an electrical contact cleaner on the plugs under the seat. This removes oxidation that causes high resistance.

The Renault DF104 code is triggered when the Airbag Control Unit (ACU) detects abnormal resistance in the passenger airbag wiring. Because airbags are critical safety components, this code usually results in a persistent "Service" light and an airbag warning icon on the dashboard. Common Causes of DF104 renault df104

Once the physical repair is complete, the DF104 code may not disappear automatically. You will likely need a diagnostic tool to clear the stored fault from the ECU memory. If the repair was successful, the dashboard warning lights should stay off upon the next ignition cycle. Disconnect the battery (wait 15 minutes for the

Using a diagnostic tool like CAN Clip or an OBDII scanner, check the live data for "Passenger Airbag Circuit 1." Resistance should typically stay between 1.8 and 4.0 ohms. Potential Repair Solutions Because airbags are critical safety components, this code

💡 : Never use a standard multimeter to test the airbag unit itself. The small electrical current from the meter can accidentally deploy the airbag, causing serious injury. Clearing the Code