U2152 Diagnostic Trouble Code

U2152 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 U2152 diagnostic trouble code may include:

Lack of power
Faulty O2 Sensor
Poor acceleration
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

Possible Causes :

Defective ECU strategies or components will prevent proper regeneration
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.
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

Repair Processes :

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 U2152 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 U2152.

Fortunately, U2152 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U2152 Trouble Code For Specific Cars

U2152 Chery Qq DPFE Circuit Low Input
U2152 Mahindra Commander Traction Control Valve Rear Circuit Short To Battery
U2152 Opel Calibra Decklid Ajar Rear Door Circuit Short To Battery
U2152 Rover 14 Idle Control System RPM lower Than Expected
U2152 Iso Rivolta
U2152 Cisitalia 202 Exhaust Valve Control Solenoid Circuit Low (Bank 1)
U2152 Kaiser Six Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Short To Ground