U0064 Diagnostic Trouble Code

U0064 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 U0064 diagnostic trouble code may include:

Engine surge
Blown fuse (if applicable)
Lack of power
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. 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. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition.

Process Tips

Diagnostic trouble code U0064 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 U0064.

Fortunately, U0064 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U0064 Trouble Code For Specific Cars

U0064 Toyota 105 Multiple Gears Engaged
U0064 Suzuki Celerio Memory Off Switch Circuit Short to Battery
U0064 Nissan Grand Clutch Position Sensor Circuit Malfunction
U0064 Merkur Xr Air Suspension RF Air Spring Solenoid Output Circuit Short To Battery
U0064 Toyota Tazz Passenger Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open
U0064 Chrysler Cirrus Engine RPM Output Circuit Malfunction
U0064 Ferrari 348 Intake Air Temperature Circuit High Input