U1901 Volkswagen 1303 OBD Code

OBD/2 U1901 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 U1901. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for U1901

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

U1901 Volkswagen 1303 Error Code Repair Process :

For phone handset circuit failure check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. U1901 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks phone handset circuit failure with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Volkswagen 1303 U1901 OBD2 Code

A common cause of code U1901 is the failure of Phone Handset Circuit Failure, but there are several other possible causes as well, such as ;

EVAP system hose leaking
Dirty Oil
Fuel tank leaking
Open or short in the VCT circuit

U1901 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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U1901 Volkswagen 1303 OBD Code

U1901 Volkswagen 1303 Error Code Repair Process :

Common Causes of Volkswagen 1303 U1901 OBD2 Code

U1901 code for other Volkswagen cars