U1415 Diagnostic Trouble Code

U1415 is a kind of OBD-II Diagnostic U-Network 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 U1415 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 :

The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
Defective ECU strategies or components will prevent proper regeneration
An air leak forward of the DPF will change the sensor readings resulting in the code

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. 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. Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed.

Process Tips

Diagnostic trouble code U1415 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 U1415.

Fortunately, U1415 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U1415 Trouble Code For Specific Cars

U1415 Sbarro Ionos Injection Pump Fuel Metering Control "A" High (Cam/Rotor/Injector)
U1415 Toyota Pod Panel Dim Switch Circuit Open
U1415 Rover Metro
U1415 Ferrari F430 Spider Internal Control Module ROM Error (Module Identification Defined by SAE J1979)
U1415 Lada 119 Servo Motor Vent Circuit Failure
U1415 Opel Admiral Damper RF Circuit Open
U1415 Chevrolet Blazer Driver Power Window Down Circuit Short To Battery