DTC P0230: Notes
DTC P0230 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0230 |
FP primary circuit |
| DETECTION CONDITION |
- The PCM monitors the fuel pump circuit output from the PCM. The test fails when the fuel pump output is commanded ON (grounded) and excessive current draw is detected on the fuel pump circuit. The test also fails when the fuel pump output is commanded OFF and voltage is not detected on the fuel pump circuit. The PCM expects to detect vehicle power voltage coming through the fuel pump relay coil to the fuel pump circuit.
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| POSSIBLE CAUSE |
- Fuel pump relay malfunction
- Connector or terminal malfunction
- Open circuit wiring harness between fuel pump relay terminal E and PCM terminal 1V
- Short to ground circuit between fuel pump relay terminal E and PCM terminal 1V
- Open circuit wiring harness between ignition switch and fuel pump relay terminal A
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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