B0415 Diagnostic Trouble Code

B0415 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 B0415 diagnostic trouble code may include:

Faulty O2 Sensor
Lack of power
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

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 :

Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.

Process Tips

Diagnostic trouble code B0415 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 B0415.

Fortunately, B0415 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B0415 Trouble Code For Specific Cars

B0415 Alvis Tb Air Pump Circuit Malfunction/ (AIR) System Bank 1
B0415 Volkswagen 411 Rear Sounder Circuit Failure
B0415 Mitsubishi Rpm Aux Heater Flame Sensor Circuit Open
B0415 Bmw 428 Chime Circuit Failure
B0415 Amc Javelin Air Suspension Front Inflator Solenoid Output Circuit Short To Ground
B0415 Oldsmobile Trofeo Damper LR Circuit Failure
B0415 Tvr 450 Power Door Lock Circuit Short To Ground