U3331 Dodge Conquest OBD Code

OBD/2 U3331 error code description and symptoms.

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.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code U3331, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code U3331 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

U3331 Dodge Conquest Error Code Repair Process :

If your fuel restriction condition 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 U3331 and engine control unit are in charge of monitoring a bunch of different fuel restriction condition, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Dodge Conquest U3331 OBD2 Code

A common cause of code U3331 is the failure of Fuel Restriction Condition, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Faulty ignition coil (s)
EVAP system hose leaking
Radio frequency interference (RFI)

U3331 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.

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

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U3331 Dodge Conquest OBD Code

U3331 Dodge Conquest Error Code Repair Process :

Common Causes of Dodge Conquest U3331 OBD2 Code

U3331 code for other Dodge cars