U251C Nissan Mid4 OBD Code

OBD/2 U251C error code description and symptoms.

Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as U251C. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for U251C

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

U251C Nissan Mid4 Error Code Repair Process :

The rule of U251C 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 air suspension lr air spring/shock solenoid output circuit short to ground. Likewise, overriding the OBD U251C 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 Mid4 U251C OBD2 Code

A common cause of code U251C is the failure of Air Suspension LR Air Spring/Shock Solenoid Output Circuit Short To Ground, but there are several other possible causes as well, such as ;

EVAP system hose leaking
Faulty Crankshaft Position Sensor (POS)
Faulty Intake Valve Timing Control Solenoid Valve
Radio frequency interference (RFI)

U251C 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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U251C Nissan Mid4 OBD Code

U251C Nissan Mid4 Error Code Repair Process :

Common Causes of Nissan Mid4 U251C OBD2 Code

U251C code for other Nissan cars