DTC P0232: Notes
DTC P0232 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0232 |
FP secondary circuit high |
| DETECTION CONDITION |
- The PCM monitors the fuel pump monitor circuit. This test fails when the PCM detects voltage on the fuel pump monitor circuit while the fuel pump is commanded OFF. The fuel pump monitor circuit is wired to a pull-up voltage inside the PCM. The fuel pump monitor circuit goes high if, with the key ON, engine OFF and the fuel pump commanded OFF, the fuel pump monitor/fuel pump power circuit loses its path to ground through the fuel pump. The fuel pump monitor circuit also goes high if the fuel pump monitor/fuel pump power circuit is short to voltage.
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| POSSIBLE CAUSE |
- Fuel pump relay malfunction
- Fuel pump malfunction
- Connector or terminal malfunction
- Open circuit between fuel pump terminal B and PCM terminal 1Q
- Fuel pump connector for poor connection
- Short to power supply between fuel pump terminal B and PCM terminal 1Q
- Short to power supply between fuel pump relay terminal D and PCM terminal 1Q
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 Courtesy of MAZDA MOTORS CORP.
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