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DTC P0230: FP Primary Circuit: Notes

DTC P0230 CHART (MZI-3.7)

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.
POSSIBLE CAUSE 
  • Open circuit wiring harness between ignition switch (IG1) and fuel pump relay terminal A
  • Short to ground circuit between fuel pump relay terminal E and PCM terminal 1BI
  • Short to power supply in wiring harness between fuel pump relay terminal E and PCM terminal 1BI
  • Open circuit wiring harness between fuel pump relay terminal E and PCM terminal 1BI
  • Fuel pump relay malfunction
  • Damaged fuel pump relay
  • PCM malfunction
G00511564Courtesy of MAZDA MOTORS CORP.
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