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Bentley Volkswagen.Golf.Jetta.R32.Official.Factory.Repair.Manual.1999-2005

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Additional signals, checking<br />

Página 5 de 40<br />

24-192<br />

- Connect VAG 1598/31 test box to<br />

control module wiring harness.<br />

Engine Control Module (ECM) -<br />

J220- remains disconnected.<br />

- Connect multimeter to measure<br />

voltage between test box sockets<br />

1 (Ground) and 54 (vehicle speed<br />

signal) using adapter cables from<br />

VAG 1594.<br />

- Raise vehicle at front left.<br />

- Switch on ignition.<br />

- Rotate front wheel and observe<br />

voltage display.<br />

Specification: 0.0... at least 4.0 V<br />

fluctuating<br />

Note:<br />

Front right wheel must not turn, if<br />

necessary, hold to prevent it from<br />

turning.<br />

If the display does not fluctuate:<br />

- Check wiring from test box socket<br />

54 to instrument cluster for<br />

open/short circuit:<br />

Electrical Wiring Diagrams,<br />

Troubleshooting & Component<br />

Locations<br />

http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Next&type=repair&id=...<br />

12/2/<strong>2005</strong>

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