2020-08-28 06:02:28 -07:00
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[72 pin Connector](OEM-connectors#72-pin)
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2020-08-27 14:32:54 -07:00
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![Connector Face](Images/NB2 Miata ECU Connectors Drawing.png)
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## ECU
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![Wiring Diagram](Images/Mazda_miata_2002.png)
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## Gauge cluster
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![Wiring Diagram](Images/Mazda_miata_2002_instrument.png)
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## Starting & power
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Main relay is controlled by ignition switch (this is different from 2003 where ECU controls main relay via 3H).
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Nothing on 4S (4S is ignition power source on 2003).
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ECU is powered from main relay via 4AF (this is different from 2003 where ECU is powered via 4S)
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Fly-back diode - stripe facing +12 - is needed between VVT 4S (power, stripe side) and VVT control 4R.
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Fly-back diode - stripe facing +12 - is needed between IAC 2P and IAC control 2Q.
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![Wiring Diagram](Images/Mazda_miata_2002_starting.png)
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![Wiring Diagram](Images/Mazda_miata_2002_power.png)
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## Data Links
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![Wiring Diagram](Images/Mazda_miata_2002_data_links.png)
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