U20DU Nissan 200 OBD Code

OBD/2 U20DU error code description and symptoms.

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

U20DU Nissan 200 Error Code Repair Process :

The rule of U20DU code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of mirror driver vertical feedback potentiometer circuit open. Likewise, overriding the OBD U20DU error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Common Causes of Nissan 200 U20DU OBD2 Code

A common cause of code U20DU is the failure of Mirror Driver Vertical Feedback Potentiometer Circuit Open, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Faulty oil control valve (OCV)
Faulty Crankshaft Position Sensor (POS)
Variable Camshaft Timing (VCT) position circuit poor electrical connection

U20DU is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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U20DU Nissan 200 OBD Code

U20DU Nissan 200 Error Code Repair Process :

Common Causes of Nissan 200 U20DU OBD2 Code

U20DU code for other Nissan cars