DTC P0193-00: Fuel Pressure Sensor Circuit High Input: 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 P0193:00 (PCM, SKYACTIV-G) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Fuel pressure sensor circuit high input |
| Detection condition |
- If the input voltage at the PCM terminal 1W is more than 4.87 V for 5 s, the PCM determines that the fuel pressure sensor circuit is high.
|
| Fail-safe |
- Stops high pressure fuel pump control
- Limits intake air amount
|
| Possible cause |
- Fuel pressure sensor connector or terminals malfunction
- PCM connector or terminals malfunction
- Fuel pressure sensor malfunction
- Short to power supply in fuel pressure sensor signal circuit
- Open circuit in any of the following fuel pressure sensor circuits.
- Power supply circuit
- Signal circuit
- Ground circuit
- PCM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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