MX-5 Miata Mazdaspeed L4-1.8L DOHC Turbo (2004)
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If not as specified, replace the EVAP system leak detection pump.
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If as specified, carry out the "Circuit Open/Short Inspection".
Circuit Open/Short Inspection
Open circuit
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If there is no continuity, the circuit is open. Repair or replace the harness.
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EVAP system leak detection pump terminal C (harness-side) and PCM terminal 4AH
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EVAP system leak detection pump terminal D (harness-side) and PCM terminal 3K
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EVAP system leak detection pump terminal A (harness-side) and main relay terminal D (harness-side)
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EVAP system leak detection pump terminal B (harness-side) and the body GND
Short circuit
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If there is continuity, the circuit is shorted. Repair or replace the harness.
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EVAP system leak detection pump terminal C (harness-side) and power supply
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EVAP system leak detection pump terminal D (harness-side) and power supply
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EVAP system leak detection pump terminal A (harness-side) and the body GND
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EVAP system leak detection pump terminal B (harness-side) and power supply