U0266 Trouble Code

View U0266 obd/2 error code description and symptoms. U0266 engine photo

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.

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.

U0266 Error Code Repair Process :

If your fuel trim too rich (bank 2) check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system U0266 and engine control unit are in charge of monitoring a bunch of different fuel trim too rich (bank 2), and if they get a reading that's a little out of whack, up pops the check engine light.

U0266 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.

Common Causes of U0266

A common cause of code U0266 is the failure of Fuel Trim too Rich (Bank 2), but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Faulty Intake Valve Timing Control Solenoid Valve
Intake Valve Timing Control Solenoid Valve circuit poor electrical connection
Faulty Mass Air Flow (MAF) sensor

U0266 code for all cars

You can view according U0266 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+U0266 Fiat Talento

+U0266 Ford Mondeo 4

+U0266 Chevrolet Optra

+U0266 Nissan Serena

+U0266 Saturn Vue

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