In mechanic/ECU tuning terminology, usually means Update (firmware/calibration) or Upgrade (performance).
If you have an open circuit on the CAN lines: df158 renault upd
The ECU throws a false positive error because its internal tolerances are configured too tightly. Pin Corrosion or Resistance In mechanic/ECU tuning terminology
Peer under both front seats. Locate the yellow safety connector blocks. df158 renault upd
A fault in the circuit of the sensor that detects side-impact collisions.
