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Home >> BMW >> 1990 >> 325is Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> MOTRONIC Control Unit (MCU) >> Ground Circuits
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Ground Circuits

MCU is grounded through pins No. 2, 14, 19 and 24. Pins No. 2, 14 and 24 are Brown wires. Pin No. 19 is a Brown/Orange wire. Ground point is on right front shock tower. For more information, see WIRING DIAGRAMS article.