U015U Diagnostic Trouble Code

U015U 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 U015U diagnostic trouble code may include:

Vacuum leak on the engine
Reduction in engine performance, especially at low RPM levels
Engine surge
Rich or lean exhaust

Possible Causes :

The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
Fuel with a large percentage of sulfur will clog the DPF quickly
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

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. It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem.

Process Tips

Diagnostic trouble code U015U 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 U015U.

Fortunately, U015U is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U015U Trouble Code For Specific Cars

U015U Mcc Fortwo A/C Refrigerant pressure Sensor Circuit High Input
U015U Chery A5 Double Lock Timeout Failure
U015U Honda Argento Pressure Control Solenoid C Control Circuit Low
U015U Fiat Cinquecento Lamp Headlamp Low-Beam Circuit Short To Ground
U015U Lexus Sc THEFT Detected, Vehicle Immobilzed
U015U Vernon-derby Vernon-derby
U015U Ford Mondeo 4 Mirror Driver/Passenger Switch Circuit Open