B1274 Trouble Code

View B1274 obd/2 error code description and symptoms. B1274 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.

To check for an open circuit, trace along the length of the transmission control circuit, checking for breaks in the wiring. Repair any broken wiring and make sure all connectors are fully seated and locked.Pay close attention to connectors, looking for corrosion, bent or broken pins, or moisture in the connector. Repair any connector issues even if they are not specifically part of the transmission control circuit as they may serve a function in providing power to the transmission control circuit.

B1274 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine B1274 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If b1274 servo motor potentiometer vent circuit short to battery so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the b1274 servo motor potentiometer vent circuit short to battery.

B1274 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 B1274

A common cause of code B1274 is the failure of B1274 Servo Motor Potentiometer Vent Circuit Short To Battery, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Exhaust tube
Fuel filler cap remains open or fails to close
Open or short in the CMP sensor circuits

B1274 code for all cars

You can view according B1274 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B1274 Rch 25

+B1274 Delahaye Coupe

+B1274 Porsche Rsk

+B1274 Acura Csx

+B1274 Ford Pinto

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