P3337 Mazda Scrum OBD Code

OBD/2 P3337 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.

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.

P3337 Mazda Scrum Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P3337 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 aux heater overheat sensor circuit open 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 aux heater overheat sensor circuit open.

Common Causes of Mazda Scrum P3337 OBD2 Code

A common cause of code P3337 is the failure of Aux Heater Overheat Sensor Circuit Open, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Faulty starter motor
Faulty front heated oxygen sensor
Faulty Air Flow Meter

P3337 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

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

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P3337 Mazda Scrum OBD Code

P3337 Mazda Scrum Error Code Repair Process :

Common Causes of Mazda Scrum P3337 OBD2 Code

P3337 code for other Mazda cars