Nissan X-Terra U222A Code:

OBD-II Diagnostic Network (U) Trouble Code

Trouble In Nissan X-Terra U222A Possible Cause

The most common causes of Nissan X-Terra U222A code being stored are due to a defective intermediate shaft speed sensor, output speed sensor, or input speed sensor.

Common Symptoms For Nissan X-Terra U222A

  1. The cruise control module uses the data for speed control purposes, the traction control system uses the data to regulate vehicle traction control strategy, and the anti lock brake controller compares vehicle speed from the PCM with data inputs from individual wheel speed sensors to operate the anti lock braking system. Several tools will be instrumental in attempting to successfully diagnose this code
  2. As the input shaft is turned (by the engine) the electro magnetic input/turbine speed sensor uses the spaces between the splines to provide voltage signal interruptions in the circuit
  3. A suitable OBD-II scanner (or code reader), a digital volt/ohmmeter, and an oscilloscope will be most helpful in performing a successful diagnosis
  4. Several tools will be instrumental in successfully diagnosing this code

Similar Problems

Fuel And Air Metering
Exhaust Gas Recirculation System Valve 1
TFP Valve Position Switch-Drive Without Drive Ratio

Nissan X-Terra U222A Troubleshooting

Having one of the signs of a bad gasket is usually not enough to prove a failure of a gasket, but multiple symptoms are most likely the result of gasket failure. It is advisable to have the vehicle driven as little as possible whenever the symptoms occur. Depending on the symptoms, either have the gasket replaced or repaired.
The cost of replacing a gasket usually varies from one mechanic to the other. Replacing a gasket is quite expensive in modern engines due to their location and the amount of labor that is required to replace them. Nissan X-Terra U222A OBD2 reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.

How to turn off Nissan X-Terra U222A check engine light ?

There are two ways to turn off the check engine light:

A repair technician can do so once repairs have been made.
The OBD II can automatically turn it off when it fails to detect the problem after several diagnostic cycles.

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