U0200 Diagnostic Trouble Code

U0200 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 U0200 diagnostic trouble code may include:

Faulty O2 Sensor
Lack of power
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Reduction in engine performance, especially at low RPM levels

Possible Causes :

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.
Some aftermarket accessories and performance modifications
Fuel with a large percentage of sulfur will clog the DPF quickly

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. Now, clear the codes and test-drive the vehicle to see if the code is reset.

Process Tips

Diagnostic trouble code U0200 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 U0200.

Fortunately, U0200 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U0200 Trouble Code For Specific Cars

U0200 Humber 16 Right Rear Backup Lamp Circuit Failure
U0200 Chevrolet Touring Electronic Throttle Monitor PCM Override
U0200 Sunbeam 10 MAF Sensor Intermittent/ Check of all OBDII Systems Not Complete
U0200 Sunbeam-talbot 4-litre Mass or Volume Air Flow Circuit low Input
U0200 Goggomobil Royal Passenger Door Ajar Circuit Failure
U0200 Aston Martin Db5 Air Suspension RR Air Spring/Shock Solenoid Output Circuit Short To Ground
U0200 Cadillac 60 Damper RF Circuit Open