U3931 Engine Trouble Code
Meaning of U3931 engine trouble code is a kind of network trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $240-$400 depending on the car, but that's usually the cost of parts because the labor is relatively simple.
U3931 Fault Symptoms :
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If one of these reasons for U3931 code is occuring now you should check U3931 repair processes.
Now don't ask yourself; What should you do with U3931 code ? The solution is here : |
U3931 Possible Solution:
Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged. |
U3931 Code Meaning :
U | 3 | 9 | 3 | 1 |
---|---|---|---|---|
OBD-II Diagnostic Network (U) Trouble Code For Engine | Ignition System Or Misfire | Injector Circuit Malfunction - Cylinders | Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector) | Crankshaft Position Sensor A Circuit Low Input |
The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.
U3931 OBD-II Diagnostic Network (U) Trouble Code DescriptionU3931 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.Main reason For U3931 CodeThe reason of U3931 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders. |
U3931 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.