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Home >> Mini >> 2002 >> Cooper Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Management - Overview >> MINI Engine Management >> System Inputs >> Power Supplies >> Main Relay >> Main Relay Failure Symptoms

Main Relay Failure Symptoms

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An open circuit in the Main Relay will result in no voltage to the EMS2000 and the other components as supplied by the Main Relay.

A permanently engaged Main Relay will result in an excessive closed current draw and will lead to a dead battery.

Main Relay activation is monitored by the EMS2000. Faults will be set if the main relay is energized and power is not received by the EMS2000.