U3931 Trouble Code

View U3931 obd/2 error code description and symptoms. U3931 engine photo

Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.

Regardless of the design though, the purpose of all clutch actuating systems is to improve the driving experience by removing the need for manual clutch operation by the driver. Computer-controlled clutch actuating systems work particularly well in dual clutch systems where one clutch controls gear changes of even-numbered gear ratios, and a second clutch that controls gear changes of odd-numbered ratios.

Difficulty Level (Easy)
Level
Repair Time (45 Min.)
Time
Cost Prediction : $ 80-170

U3931 Error Code Repair Process :

The rule of U3931 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 kickdown pull relay open or short circuit to ground. Likewise, overriding the OBD U3931 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.

Wrench Tool U3931 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 U3931

A common cause of code U3931 is the failure of Kickdown Pull Relay Open or Short Circuit to Ground, but there are several other possible causes as well, such as ;

U3931 code for all cars

You can view according U3931 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+U3931 Honda Acura Tsx +U3931 Jowett Javelin +U3931 Bentley 3-litre +U3931 Bmw Touring +U3931 Jaguar Xkr

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