Renault Diagnostic Trouble Codes
OBD2 fault codes seen on Renault vehicles, with what each code means and the Renault models it shows up on. Each code's page has its typical repair cost range.
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Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance
- Renault Megane • 2008-2024
The 1.5 dCi turbo diesel of the Mégane III and IV has its MAP sensor after the turbo.
Catalyst System Efficiency Below Threshold (Bank 1)
- Renault Clio • 2005-2024
On petrol Renault engines (Clio, Captur, Megane with the 1.2 16V, 1.2 TCe and 1.6 16V), P0420 usually points…
Fuel System
Turbocharger/Supercharger "A" Overboost Condition
- Renault Megane RS • 2004-2016
The Megane RS uses a turbocharged 2.0-litre petrol engine (F4Rt, 2004-2016), so an overboost code on an RS…
System Too Rich at Idle (Bank 1)
- Renault Megane • 2003-2023
A coolant temp sensor reading colder than actual causes the ECU to enrich the mixture as if the engine were…
Ignition
Electrical
Transmission
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