If you throw a fuel pump, injectors, or an ECU at this code, you are playing a very expensive lottery. I learned this the hard way after replacing a perfectly good high-pressure pump on a 2014 Trafic.
The actual fix for DTC060AF1 (updated for 2026):
Based on Renault technical documentation and CLIP (Renault’s diagnostic tool) databases, DTC060AF1 translates to: renault dtc060af1 updated
"Engine control unit: Internal electronic fault – Software integrity / Checksum error."
In layman’s terms: The ECU has performed a self-diagnosis and discovered that a portion of its internal software—or a critical calibration parameter—does not match the expected checksum. This is akin to finding corrupted data on a computer’s hard drive. If you throw a fuel pump, injectors, or
Before we discuss the "updated" aspect, let’s establish the baseline.
DTC060AF1 is a proprietary Renault fault code. Unlike generic OBD2 codes (PXXXX), Renault uses manufacturer-specific codes to describe intricate electronic issues, particularly within the Engine Control Unit (ECU) and the vehicle’s multiplexed network (CAN bus). "Engine control unit: Internal electronic fault – Software
When this code is active, the vehicle typically exhibits:
Before reprogramming:
Here is the warning for the performance crowd. If your Mégane III or Kadjar has an aftermarket remap (Stage 1 or 2), installing the official DTC060AF1 update will overwrite that tune.
Furthermore, the update contains a new checksum verification. Several tuners have reported that the updated file locks the OBD port for writing, forcing them to bench-flash the ECU (removing it physically) to reinstall a tune.