C3331 Trouble Code

View C3331 obd/2 error code description and symptoms. C3331 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.

C3331 Error Code Repair Process :

The rule of C3331 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 communication link to display and switch module error. Likewise, overriding the OBD C3331 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.

C3331 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Common Causes of C3331

A common cause of code C3331 is the failure of Communication Link to Display and Switch Module Error, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Faulty Air Flow Meter
Faulty Fuel injector
Open VPWR circuit

C3331 code for all cars

You can view according C3331 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C3331 Zagato Raptor

+C3331 Seat 1500

+C3331 Toyota Sa

+C3331 Beijing Bj 212

+C3331 Italdesign Volta

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