U0718 Diagnostic Trouble Code

U0718 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 U0718 diagnostic trouble code may include:

Faulty PCM
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Poor acceleration
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

Fuel with a large percentage of sulfur will clog the DPF quickly
The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness. It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem.

Process Tips

Diagnostic trouble code U0718 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 U0718.

Fortunately, U0718 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U0718 Trouble Code For Specific Cars

U0718 Mitsubishi A10 Audio Center Amp is not responding
U0718 Spyker 30 Lamp Dome Input Circuit Failure
U0718 Triumph Tr Pedal Correlation PDS2 and HPDS
U0718 Fiat Oggi Lamp Turn Signal Rear Output Circuit Failure
U0718 Volkswagen Parati Right Rear Sensor Circuit Fault
U0718 Bmw Wartburg Code Word Unregestered
U0718 Geely Bo O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 3)