C3783 Diagnostic Trouble Code

C3783 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 C3783 diagnostic trouble code may include:

Misfire
Misfire
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Engine surge

Possible Causes :

Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
An air leak forward of the DPF will change the sensor readings resulting in the code
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code C3783 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 C3783.

Fortunately, C3783 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C3783 Trouble Code For Specific Cars

C3783 Mercedes-benz W123 Air Suspension LF Air Spring Solenoid Output Circuit Short To Battery
C3783 Buckler Bb Cylinder #2 High To Low Side Short
C3783 Pontiac Trans Sport Front Crash Sensor Internal Fault
C3783 Rover P2 Ignition Coil Primary/Secondary Circuit Malfunction
C3783 Locomobile 40 Timing Reference High Resolution Signal A Malfunction
C3783 Renault Concorde Gear Shift Position Circuit Intermittent
C3783 Nobel 200 Cylinder 1 Injector Circuit Low