C2404 Diagnostic Trouble Code

C2404 is a kind of OBD-II Diagnostic C-Chassis Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a C2404 diagnostic trouble code may include:

The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Faulty PCM
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Diminished fuel efficiency

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector.

Process Tips

Diagnostic trouble code C2404 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before C2404.

Fortunately, C2404 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2404 Trouble Code For Specific Cars

C2404 Buick 6 Cylinder 4 Contribution/Balance Fault
C2404 Renault 12 Gauge Driver Circuit Fault
C2404 Chrysler Avenger Engine Over Speed Condition
C2404 Austin 7 Autolamp Delay Circuit Short To Battery
C2404 Bugatti Type 64 Cylinder 2 Contribution/Balance Fault
C2404 Subaru Pleo LF PARK LAMP OUTPUT CIRCUIT Short to Battery
C2404 Lagonda 42 Hp Shift Solenoid D Performance or Stuck Off