C2396 Diagnostic Trouble Code

C2396 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 C2396 diagnostic trouble code may include:

Fuel pressure too high
Diminished fuel efficiency
Rich or lean exhaust
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
Faulty IMRC actuator relay (if equipped)

Repair Processes :

Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness.

Process Tips

Diagnostic trouble code C2396 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 C2396.

Fortunately, C2396 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2396 Trouble Code For Specific Cars

C2396 Ginetta G12 Oil Level Switch Circuit Short To Battery
C2396 Datsun Pulsar HO2S Heater Control Circuit (Bank 2 Sensor 3)
C2396 Skoda Felicia Kickdown Relay Hold Circuit Fault
C2396 Adler 35 ABS Outlet Valve Coil LF Circuit Failure
C2396 Hotchkiss Torpedo Ride Control LR Shock Actuator Circuit Open
C2396 Glas 1304 Overdrive Band Failed Off
C2396 Honda Jazz 1 Pump Speed Signal Fault