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Home >> Volkswagen >> 1990 >> Jetta GLI, 2.0 J >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Engine Controls - System/Component Tests) >> Computerized Engine Controls >> Electronic Control Unit (AFC-DIGIFANT) >> Ground Circuits

Ground Circuits

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Using Multimeter (US 1119), check resistance of ground connections for ECU. Remove ECU connector. Check continuity to ground on terminals No. 13 and 19. See Figure . Resistance should be zero ohms. If resistance is not zero ohms, repair open or short in wiring.