DTC P0193-00: Fuel Pressure Sensor Circuit High Input: Notes
WARNING: This page is about a different variant/trim than selected.
DTC P0193-00: (PCM, VIN M) DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P0193-00: |
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. Diagnostic support note
- This is a continuous monitor (CCM).
- The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA/Snapshot data is available.
- DTC is stored in the PCM memory.
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| FAIL-SAFE FUNCTION |
- Stops high pressure fuel pump control
- Limits intake air amount
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| POSSIBLE CAUSE |
- Fuel pressure sensor connector or terminals malfunction
- PCM connector or terminals malfunction
- Fuel pressure sensor malfunction
- Short to power supply in wiring harness between fuel pressure sensor terminal C and PCM terminal 1W
- Open circuit in wiring harness between the following terminals:
- Fuel pressure sensor terminal E-PCM terminal 1K
- Fuel pressure sensor terminal C-PCM terminal 1W
- Fuel pressure sensor terminal A-PCM terminal 1BH
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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