B19CD Diagnostic Trouble Code

B19CD is a kind of OBD-II Diagnostic B-Body 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 B19CD diagnostic trouble code may include:

The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
Faulty or damaged wiring
Hesitation upon acceleration
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. 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. 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.

Process Tips

Diagnostic trouble code B19CD 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 B19CD.

Fortunately, B19CD is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B19CD Trouble Code For Specific Cars

B19CD Renault Talisman HO2S Heater Control Circuit (Bank 2 Sensor 1)
B19CD Mazda Cronos Transmission Transfer Case Disengaged Solenoid Open Circuit
B19CD Mcc Smart A/C Refrigerant Pressure Sensor Circuit Malfunction
B19CD Subaru Mini Jumbo LF LAMP HIGH BEAM CIRCUIT Failure
B19CD Hyundai Centennial SBDS Interactive Codes
B19CD Mg K3 Air Suspension RR Height Sensor Circuit Open
B19CD Scott Sociable Injector Circuit Malfunction