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Home >> Volkswagen >> 1990 >> Cabriolet Boutique, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - System/Component Tests >> Control Unit (Cis-E) >> Ground Circuits
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Ground Circuits

Using Multimeter (US 1119), check resistance of ground circuits for ECU. Remove ECU connector. Check continuity to ground on terminals No. 2 and No. 9. Resistance should be zero ohms. If resistance is not zero ohms, repair open or short in wiring.