U200C Diagnostic Trouble Code

U200C 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 U200C diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
Hesitation upon acceleration

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.
Dirty air cleaner element Damaged DPF

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

Process Tips

Diagnostic trouble code U200C 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 U200C.

Fortunately, U200C is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U200C Trouble Code For Specific Cars

U200C Toyota Highlander Oil Level Lamp Circuit Failure
U200C Vemac Rd PSPS Out Of Self Test Range
U200C Vauxhall Calibra Pressure Control Solenoid "A" Short Circuit
U200C Saab Sonett Ignition/Distributor Engine Speed Input Circuit Intermittent
U200C Rch 25 Fuel Volume Regulator Control Circuit Low
U200C Sunbeam Alpine Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
U200C Pininfarina Birdcage Engine RPM Output Circuit Malfunction