U0996 Diagnostic Trouble Code

U0996 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 U0996 diagnostic trouble code may include:

Fuel pressure too high
Diminished fuel efficiency
Rich or lean exhaust
Lack of power

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
Faulty IMRC actuator relay (if equipped)

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 U0996 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 U0996.

Fortunately, U0996 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U0996 Trouble Code For Specific Cars

U0996 Holden Senator Power Window LR Motor Circuit Failure
U0996 Oldsmobile Aurora Cylinder 7 Contribution/Balance Fault
U0996 Ac 2-litre A/C Relay Circuit Malfunction
U0996 Citroen C1 Front Sounder Circuit Failure
U0996 Volkswagen Jetta Right Front Center Sensor Circuit Short to Vbat
U0996 Mcc Fortwo A/C Refrigerant pressure Sensor Circuit High Input
U0996 Renault Espace 4 Gear Shift Reverse Actuator Circuit / Open [rearward motion, even gears, 2,4,6]