U011C Diagnostic Trouble Code

U011C 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 U011C diagnostic trouble code may include:

Carbon Buildup on O2 Sensor
Malfunction Indicator Lamp (MIL) illuminated
Hesitation upon acceleration
Rich or lean exhaust

Possible Causes :

The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
Fuel with a large percentage of sulfur will clog the DPF quickly
Some aftermarket accessories and performance modifications

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Look at the plug wires to make sure they are not burnt or laying on the exhaust. Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors.

Process Tips

Diagnostic trouble code U011C 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 U011C.

Fortunately, U011C is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U011C Trouble Code For Specific Cars

U011C Ford Crestline Manifold Absolute Pressure Barometric Pressure Correlation
U011C Honda Element Pressure Transducer Redundant / Secondary Input Circuit Failure
U011C Opel Grandland X Dim Panel Increase Input Circuit Open
U011C Renault Concorde Gear Shift Position Circuit Intermittent
U011C Cadillac Evoq Decklid Release Circuit Open
U011C Mitsubishi Asx Audio Navigation Mute Input Ckt Failure
U011C Seat 127 Injector Circuit Malfunction - Cylinder 11