Citroën Fault Codes

Citroën has made many advancements in the world of mass-produced automobiles including being the first to sell a front-wheel-drive model.

The company works closely with Peugeot and because of this, you can find they share many of the same common fault codes.

Some of these common error codes include the P1340 which would suggest that the camshaft in your Citroën is out of sync. It knows this because it compares various sensors around the engine to check if things are acting “normally” – if this isn’t the case then you will see this P1340 error appear on your OBD2 reader.

Alongside that error, you may also see the U1213 code appear from time to time and this suggests that there is an error in the communication between modules in the car. These modules can be responsible for controlling the engine or even the equipment inside the body but in this case, the U1213 code is signaling problems between the ECU (electronic control unit) and the ESP (electronic stability program).

Seeing the P1434 error pop up in your Citroën then it must be a more model that has Adblue, a liquid to help reduce emissions. This error represents a problem either with the pump that transports the Adblue solution, a sensor or even an issue in the pipes where the Adblue has crystalized inside of them.