U0210 Diagnostic Trouble Code

U0210 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 U0210 diagnostic trouble code may include:

Hesitation upon acceleration
Excessive exhaust leak
Rich or lean exhaust
Lack of power

Possible Causes :

Some aftermarket accessories and performance modifications
A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
Faulty IMRC actuator relay (if equipped)

Repair Processes :

If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition. 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 you find a related TSB, the information will often help in diagnosing the code in question as TSBs are crested from many thousands of repairs.

Process Tips

Diagnostic trouble code U0210 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 U0210.

Fortunately, U0210 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U0210 Trouble Code For Specific Cars

U0210 Smart Ultimate Lamp Anti-Theft Indicator Circuit Short To Ground
U0210 Nissan Cherry Climate Control Water Temperature Sensor Circuit Short To Ground
U0210 Renault Talisman HO2S Heater Control Circuit (Bank 2 Sensor 1)
U0210 Fiat Multipla Lamp Turn Signal Left Circuit Short To Ground
U0210 Jaguar F-type Seat Driver Forward Switch Circuit Short To Battery
U0210 Abarth 850 A Camshaft Position Actuator Circuit (Bank 2)
U0210 Honda Avancier Pressure Control Solenoid C Control Circuit Range/Performance