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Home >> BMW >> 1989 >> 535i Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> System/Component Tests >> Introduction >> 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. See WIRING DIAGRAMS article for more information.