DTC P0462-00: Fuel Gauge Sender Unit Circuit Low Input (Us): 2WD: Outline
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0462:00 (PCM, SKYACTIV-G, US) DETECTION CONDITION AND POSSIBLE CAUSE - 2WD
| System malfunction location |
Fuel gauge sender unit circuit low input |
| Detection condition |
- The PCM monitors the fuel level signal and fuel gauge sender unit output voltage from the instrument cluster. If the PCM detects a fuel level or fuel gauge sender unit output voltage that is too low, the PCM determines that the fuel gauge sender unit circuit has a malfunction.
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| Fail-safe |
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| Possible cause |
- Fuel gauge sender unit connector or terminals malfunction
- Electrical supply unit (ESU) connector or terminals malfunction
- Short to ground in fuel gauge sender unit signal circuit
- Short circuit in fuel gauge sender unit signal circuit and ground circuit
- Fuel gauge sender unit malfunction
- Electrical supply unit (ESU) malfunction
- Instrument cluster malfunction
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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