In some cases without "main relay output +12v" both pins #1 and #5 should be connected to the single source of +12v. Pin #1 feeds ETB H-bridge, battery voltage sense, gp5 & gp6 high-side +12v, TLE8888 ...
Hall sensors are easy to wire, as they have no polarity. Simply connect the sensor's signal wire to any digital input on your ECU. Connect the ground pin to a sensor ground on the ECU, and the power ...
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