5.1.21. Main MFI relay
At inclusion of ignition tension of the rechargeable battery moves to the control unit of the engine, fuel nozzles, the air consumption measuring instrument, etc., at the same time tension on a winding of the main relay which, closing on "weight", includes elements of fuel system also moves.
Check
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- Check conductivity between contacts 5 () and 1 (–) of the relay.
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Relay winding (between contacts 5 and 1)
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Conductivity
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| The winding is included |
No
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| The winding is switched off |
Yes
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- If the relay is faulty, replace it.
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Relay winding (between contacts 5 and 3)
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Conductivity
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| The winding is switched off |
No
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| The winding is included |
Yes
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