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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 49 de 59<br />

01-69<br />

Note:<br />

For display group number 002 remember:<br />

The reading of measured value blocks in display group number 002 must be<br />

undertaken when driving off slowly. Then the ABS Control Module (w/EDL) -J104-<br />

will store the first usable voltage signals provided by the speed sensors and display<br />

these as a fixed value in the measured value block.<br />

Read measured value block 2 Display group number: 002<br />

3<br />

km/h 1)<br />

6<br />

km/h 1)<br />

2<br />

km/h 2)<br />

1<br />

km/h 2)<br />

Indicated on display: (when driving off<br />

slowly)<br />

Wheel speed at right rear speed sensor<br />

(0 to 255 km/h)<br />

Wheel speed at left rear speed sensor<br />

(0 to 255 km/h)<br />

Wheel speed at right front speed sensor<br />

(0 to 255 km/h)<br />

Wheel speed at left front speed sensor<br />

(0 to 255 km/h)<br />

1) If the deviations in display zones 1 and 2 are greater than 6 km/h (approx. 3.75 mph),<br />

the following malfunctions may be present:<br />

2) If the deviations in display zones 3 and 4 are greater than 2 km/h (approx. 1.25 mph),<br />

the following malfunctions may be present:<br />

Note:<br />

Air gap between speed sensor and rotor may be too wide.<br />

- Check that speed sensor is attached correctly to wheel bearing housing.<br />

Speed sensor or rotor exterior damaged.<br />

- Change damaged component.<br />

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

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

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