Citroën C4 Fault Codes
You can find common Citroën C4 fault codes on this page that when clicked take you to a detailed description.
You can also type in the fault code you are getting below to find a more detailed description.
If you are searching for the OBD2 port location (to plug your reader into) you can find an explanation and visual aid on this page too.
Jump To:Search Citroën C4 Codes OBD2 Port Location Citroën C4 Recall Notices Common Citroën C4 Codes
Search Citroën C4 Codes
Do you know the fault code already? Enter it in the box below and hit "Search Codes".
OBD2 Port Location
Looking for the plug-in point for your OBD2 code reader in the Citroën C4?
First Generation (2004-2009)
You can find the OBD2 port location for the first generation C4 hidden underneath the ashtry in the center of the dashboard.
All you have to do is peel away the plastic trim underneath the ashtray to expose the port.
Second Generation (2010-2019)
Again, the OBD2 location is in the center of the dashboard underneath the controls for the heating etc.
Underneath the controls (as illustrated in the photo to the left) the plastic has a gap where you can pry it away.
If you put your fingers where the yellow arrow is showing then you should be able to pull the plastic away and expose an OBD2 port.
Third Generation (2020+)
For the later models of the Citroën C4, you will find the diagnostic port tucked away underneath the steering wheel in a much easier place to get too.
It may be hidden behind an easily removable panel directly under the steering wheel or exposed, ready to be plugged into.
Citroën C4 Recalls
When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.
You can check to see if your Citroën C4 has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Citroën C4 Recalls »
Common C4 Fault Codes
These are the most common C4 fault codes that people are searching for.
Cooling Fan Rationality Check MalfunctionLearn More
Engine Overboost ConditionLearn More Fixes
Fuel System Leak Detected - Large LeakLearn More Fixes
Exhaust Gas Recirculation Sensor A CircuitLearn More
Exhaust Gas Recirculation Control Circuit LowLearn More
Hydraulic Pump Relay Circuit HighLearn More
Turbo / Super Charger UnderboostLearn More Fixes
Crankshaft Position Sensor A Circuit MalfunctionLearn More Fixes
Mass or Volume Air flow Circuit IntermittentLearn More
Evaporative Emission Control System Vent Valve/Solenoid Circuit MalfunctionLearn More Fixes
Cylinder 4 Misfire DetectedLearn More Fixes
Evaporative Emission Control System MalfunctionLearn More Fixes
Evaporative Emission Control System Vent Control Circuit MalfunctionLearn More Fixes
Catalyst System Efficiency Below Threshold (Bank 2)Learn More Fixes
Warm Up Catalyst Efficiency Below Threshold (Bank 1)Learn More
Audio Compact Disk / Disk Jockey Unit is Not RespondingLearn More
Invalid Data Received – Anti-Lock Brake System (ABS) Control ModuleLearn More
Exhaust Gas Recirculation Throttle Position Control Range/PerformanceLearn More
Secondary Air Injection System MalfunctionLearn More
Catalyst System Efficiency Below Threshold (Bank 1)Learn More Fixes
MAP - Barometric Pressure CorrelationLearn More Fixes
Evaporative Emission Control System Leak DetectedLearn More Fixes
Transmission Fluid Pressure LowLearn More
ASM Adaptive Learning Not DoneLearn More
IDM Input Circuit Malfunction/ Ignition Coil Control Circuit High VoltageLearn More
A/C pressure sensor circuit voltage highLearn More
Crank / Cam Sensor Range / PerformanceLearn More
Bank 1, Long Term Fuel Trim, Range 2 Rich Limit ExceededLearn More
Glow Plug Circuit High Input (Bank #2)Learn More
A/C Refrigerant Temperature Circuit HighLearn More
Turbo Charge Relief Circuit MalfunctionLearn More
TFT SENSOR IN RANGE FAILURE HIGHLearn More
Insufficient Engine Speed Decrease During Self TestLearn More
Camshaft Position Sensor B Circuit MalfunctionLearn More
Fuel Rail/System Pressure - Too LowLearn More Fixes
Fuel Rail Pressure Sensor Circuit Low InputLearn More
Mass or Volume Air flow Circuit MalfunctionLearn More Fixes
Exhaust Gas Recirculation Sensor A Circuit HighLearn More
SCP (J1850) Invalid or Missing Data for Primary IdLearn More
SCP (J1850) Invalid or Missing Data for External LampsLearn More
SCP (J1850) Invalid or Missing Data for Seat SwitchesLearn More
SCP (J1850) Invalid or Missing Data for Ignition Switch / StarterLearn More
Purge Flow Sensor Circuit High InputLearn More
Secondary Air Relief Solenoid Circuit MalfunctionLearn More
EGR Stepper Motor Malfunction - Circuit 2 (1.8L).Learn More Fixes
Evaporative Vac Solenoid Circuit MalfunctionLearn More
Ignition Coil A Primary Circuit MalfunctionLearn More
Manifold Temp. Sensor Circ. Open/Short to B+Learn More
Transmission Automatic Hall Effect Sensor Power Circuit Short To Battery / 4WD Low Switch Circuit ElectricalLearn More
Fuel Level Sensor B Intermittent/Bypass Line MonitorLearn More
Intake Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
Intake Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Intake Camshaft Position Timing - Over-Retarded (Bank 1)Learn More Fixes
Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor ALearn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor BLearn More Fixes
Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2Learn More Fixes
Mass or Volume Air Flow Circuit Low Voltage InputLearn More Fixes
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance ProblemLearn More Fixes
Intake Air Temperature Circuit High InputLearn More Fixes
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)Learn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)Learn More Fixes
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)Learn More Fixes
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)Learn More Fixes
System Too Lean (Bank 1)Learn More Fixes
System Too Rich (Bank 1)Learn More Fixes
System Too Rich (Bank 2)Learn More Fixes
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
Cylinder 1 Misfire DetectedLearn More Fixes
Cylinder 2 Misfire DetectedLearn More Fixes
Cylinder 3 Misfire DetectedLearn More Fixes
Cylinder 5 Misfire DetectedLearn More Fixes
- Manufacturer: Citroën
About the C4
A small family car built by the French automaker Citroen, the C4 can be classed as a compact crossover SUV.
Chosen to replace the Citroen Xsara, the launch took place in 2004 at the Geneva Motor Show. Designed by the creative team that housed Donato Coco and Jean Ploue, the C4 was available in two body types, a five-door hatchback and a three-door coupe. C
Citroen championed the fact that the C4 benefitted from some modern technologies with things like lane departure warning, directional headlights, translucent dashboards and the less common feature, a perfume dispensary installed in the air vent system.
By 2010, Citroen had brought out the second generation of C4s; these models were less eccentric looking with a less bubbled chassis and horizontal accents sweeping across the door panels.
Buyers could choose from a number of engines ranging from the 1.4-liter petrol up to the 2-liter diesel; these could be selected with a five-speed manual transmission or a 6-speed automatic.
For people wishing to consider alternatives to the Citroen C4, they could choose from the Ford Focus, Skoda Octavia, Volkswagen Golf, Vauxhall Astra, Kia Xceed, Mazda CX-30, Toyota C-HR or the Renault Arkana.
- P0483 – detection of a voltage reading that is outside the required range relating to the electrical cooling fan control circuit.
- P0234 – Found by the ECM, this code means that there are high boost levels outside of the required set pressure.
- P0093 – This error code means that there is a sizable leak in the fuel system.
- P0409 – An issue with the exhaust gas recirculation sensor.
- P0490 – An error code that can be triggered by a number of vehicle issues, but essentially, it means the exhaust gas recirculation control circuit.