U024C Diagnostic Trouble Code

U024C 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 U024C 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 :

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. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code U024C 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 U024C.

Fortunately, U024C is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U024C Trouble Code For Specific Cars

U024C Bentley Azure Battery Power Supply ECU Circuit Failure
U024C Mg C-type Air Suspension RR Air Spring/Shock Solenoid Output Circuit Open
U024C Toyota Pronard Park Brake Switch # 1 Applied Circuit Failure
U024C Opel Lotus Door Ajar Circuit Failure
U024C Hillman Imp PATS Is Disabled (Check Link Between PATS And Transponder)
U024C Lexus Is200 TCM Power Relay Control Circuit Low
U024C Datsun Bluebird HO2S Heater Control Circuit (Bank 1 Sensor 1)