U3928 Trouble Code

View U3928 obd/2 error code description and symptoms. U3928 engine photo

Low Speed Fuel Pump Primary Circuit Malfunction The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM.
The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit). Open or shorted low fuel pump (LFP) circuit Open VPWR to low speed fuel pump relay Damaged low speed fuel pump relay Damaged PCM An open circuit or short to ground can only be detected with the low speed fuel pump.

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.

U3928 Error Code Repair Process :

The scent may U3928 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such U3928, so if the inside of your car pressure control solenoid c short circuit as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

U3928 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 U3928

A common cause of code U3928 is the failure of Pressure Control Solenoid C Short Circuit, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Damaged VCT phaser
Camshaft advance mechanism binding (VCT unit)
Insufficient cylinders compression

U3928 code for all cars

You can view according U3928 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+U3928 Zastava 1300

+U3928 Nissan Note

+U3928 Standard Ensign

+U3928 Volkswagen Phaeton

+U3928 Kia Mohave

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

About Us | Contact | Privacy