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

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ABS ITT Mk 20 IE On Board Diagnostic (OBD) program<br />

Página 19 de 59<br />

01-39<br />

V.A.G 1551<br />

print-out<br />

00283<br />

Left front ABS<br />

wheel speed<br />

sensor -G47-<br />

Mechanical<br />

malfunction 1)<br />

Possible cause<br />

Excessive air gap<br />

between left front ABS<br />

wheel speed sensor -<br />

G47- and rotor (signal<br />

not OK.)<br />

Outlet valve in ABS<br />

hydraulic unit -N55-<br />

faulty<br />

<strong>Repair</strong><br />

- Check installation of left front ABS<br />

wheel speed sensor -G47- and rotor<br />

<strong>Repair</strong> Manual, Brake System,<br />

<strong>Repair</strong> Group 45; Removing and<br />

installing parts of ABS system on front<br />

and rear axles<br />

- Read measured value block Page<br />

01-61 Display group number 002<br />

- Perform output Diagnostic Test<br />

Mode (DTM) Page 01-74<br />

If the malfunction occurs again:<br />

- Replace ABS hydraulic unit -N55-<br />

<strong>Repair</strong> Manual, Brake System,<br />

<strong>Repair</strong> Group 45; Hydraulic unit, brake<br />

booster/brake master cylinder -<br />

Assembly overview; Removing and<br />

installing control module and hydraulic<br />

unit<br />

1) Type of DTC, this DTC is only recognized above 20 km/h (13 mph) (carry out test<br />

drive).<br />

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

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

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