B0431 Trouble Code

View B0431 obd/2 error code description and symptoms. B0431 engine photo

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 B0431. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for B0431

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code B0431, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code B0431 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

Difficulty Level (Soso)
Level
Repair Time (50 Min.)
Time
Cost Prediction : $ 20-50

B0431 Error Code Repair Process :

If your vehicle failed a B0431 test and the B0431 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses manifold absolute temperature circuit low input a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look manifold absolute temperature circuit low input: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

Wrench Tool B0431 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

Common Causes of B0431

A common cause of code B0431 is the failure of Manifold Absolute Temperature Circuit Low Input, but there are several other possible causes as well, such as ;

B0431 code for all cars

You can view according B0431 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B0431 Volvo 265 +B0431 Fiat 500x +B0431 Bmw 116 +B0431 Skoda Polular +B0431 Maserati Merak

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