Mazda P1456: Fuel Tank Level Sensor Circuit Malfunction

Is your scanner showing Mazda P1456?
No worries. We'll show you what it means and how to deal with it.

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OBDCodex, Editor

Mazda P1456: Fuel Tank Level Sensor Circuit Malfunction

DIY Difficulty Level
Repair Cost
Can I Still Drive?
Yes (Short-term only)

What Does The Mazda P1456 Code Mean?

Engine running, system voltage from 11-16v, and the PCM detected the Fuel Tank Level sensor signal was less than 0.20v, or that it was more than 6.22v during the CCM test.

What Are The Potential Causes Of The Mazda P1456 Code?

  • Fuel tank level sensor signal circuit open or shorted to ground
  • Fuel tank level sensor is damaged or has failed
  • PCM has failed

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Mazda Engine Control Computer
>>> Mazda Fuel Tank Sending Unit

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Mazda P1456, DTCDECODE.

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