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Home >> Volkswagen >> 1991 >> 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 (Cis-E MOTRONIC) >> Power Circuits
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Power Circuits

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1992 Volkswagen Passat, 1992 Volkswagen Jetta, 1992 Volkswagen Golf, 1992 Volkswagen GTI, and 1992 Volkswagen Fox. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition off. Disconnect ECU connector. Turn ignition on. Using a voltmeter, check for battery voltage between ECU connector terminals No. 2 (negative) and No. 1 (positive). See Figure . If battery voltage is not present, check fuse No. 23 on fuse block. If fuse is okay, check CIS-E ECU connector to fuse box wiring for open.

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