Renault, like many European automakers (e.g., PSA with P codes, BMW with hex codes), historically used its own proprietary diagnostic trouble code (DTC) format — the DF code (Défaut).
Example: DF008 — “Turbo pressure regulation.”
These DF codes are not standardized across OBD-II (SAE J2012 / ISO 15031-6).
A generic OBD-II scanner will only show P0xxx, P2xxx, P3xxx, U0xxx codes — not DF codes. renault df to p code converter
Result:
A mechanic with a generic scanner may see “P0238” (Turbocharger Boost Sensor A Circuit High), while a Renault CLIP tool shows “DF008.”
The translation between DF and P codes is often incomplete, ambiguous, or undocumented publicly. Renault, like many European automakers (e
If you want to create a DF ↔ P converter for e.g., Renault Megane 2 (1.9 dCi, 2003–2008) : If you want to create a DF ↔ P converter for e
CREATE TABLE df_to_p (
df_code TEXT,
df_subcode INTEGER,
ecu_type TEXT,
p_code TEXT,
description TEXT
);
This works perfectly for one car family. Scaling to all Renaults is massive.
High-end aftermarket scanners (like Launch, Autel, or Snap-on) have invested heavily in Renault-specific protocols.
Renault uses P1xxx (e.g., P1160, P1198) for features not covered by SAE.
A good converter must include these.