Volkswagen New Beetle. Manual - part 725

z

Press keys 0, 0 and 2.  

z

Confirm entry with key Q.  

z

There are always 4 display zones -arrows- in the measured value block. Decoding the individual values in 
display zones 1 to 4 can be read-off from the following tables. 

Fig. 191: V.A.G 1551 Scan Tool Display - Checking Speed Sensor (1 Of 2) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Indicated on display: (vehicle stationary) 

Fig. 192: V.A.G 1551 Scan Tool Display - Checking Speed Sensor (2 Of 2) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Press C key for the next display group number entry. 

If the --> key is pressed, keys 0 and 8 for work sequence "Read measured value block" must be pressed again 
afterwards to regain entry. 

 

2003 Volkswagen New Beetle GLS 

1998-2004 BRAKES On Board Diagnostic (OBD) - New Beetle

  

DISPLAY GROUP NUMBER: 002 

Checking brake light switch, brake system warning lamp, ABS warning lamp and ASR/ESP warning light 

Display group number 003 

z

Press keys 0, 0 and 3  

z

Confirm entry with key Q.  

z

There are always 4 display zones -arrows- in the measured value block. Decoding the individual values in 
display zones 1 to 4 can be read-off from the following tables. 

NOTE:

For display group number 002 remember: The reading of measured value 
blocks in display group number 002 must be undertaken when driving off 
slowly. Then the ABS control module (w/EDL) -J104- will store the first usable 
voltage signals provided by the speed sensors and display these as a fixed 
value in the measured value block.

Read measured value block

2 -->

Display group number: 002

3 km/h

(1)

6 km/h

(1)

2 km/h

(2)

1 km/h

(2)

<- - Indicated on display: (when driving off slowly)

 

 

 

 

Wheel speed at right rear speed sensor

z

(0...255 km/h) 

 

 

 

Wheel speed at left rear speed sensor 

z

(0...255 km/h)  

 

 

Wheel speed at right front speed sensor 

z

(0...255 km/h)  

 

Wheel speed at left front speed sensor 

z

(0...255 km/h)  

(1)

If the deviations in display zones 1 and 2 are greater than 6 km/h (approx. 3.75 mph), the following 
malfunctions may be present:

(2)

If the deviations in display zones 3 and 4 are greater than 2 km/h (approx. 1.25 mph), the following 
malfunctions may be present. Air gap between speed sensor and rotor may be too big: Check that 
speed sensor is screwed correctly to wheel bearing housing. Speed sensor or rotor exterior damaged: 
Change damaged component.

 

2003 Volkswagen New Beetle GLS 

1998-2004 BRAKES On Board Diagnostic (OBD) - New Beetle

  

Fig. 193: V.A.G 1551 Scan Tool Display - Checking Brake Light Switch (1 Of 2) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Indicated on display: (vehicle stationary) 

Press C key for the next display group number entry. 

If the --> key is pressed, keys 0 and 8 for work sequence "Read measured value block" must be pressed again 
afterward to regain entry. 

Fig. 194: V.A.G 1551 Scan Tool Display - Checking Brake Light Switch (2 Of 2) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

DISPLAY GROUP NUMBER: 003 

Read measured value block

3 -->

Display group number: 003

not 
oper.

off

off

off

< - - Indicated on display

 

 

 

 

ASR/ESP warning light

z

off 

z

on 

 

2003 Volkswagen New Beetle GLS 

1998-2004 BRAKES On Board Diagnostic (OBD) - New Beetle

  

Checking steering angle sender, lateral acceleration sender and yaw rate sender. 

Display group number 004 

z

Press keys 0, 0 and 4  

z

Confirm entry with key Q.  

z

There are always 3 display zones -arrows- in the measured value block. Decoding the individual values in 
display zones 1 to 3 can be read-off from the following tables. 

 

 

 

ABS warning light 

(1)

 

z

off  

z

on  

 

 

Brake system warning light

(1)

 

z

off  

z

on  

 

Brake light switch: 

z

not oper. --> Brake pedal not depressed  

z

operated --> Brake pedal depressed  

 
If "not oper." is indicated on the V.A.G 1551 display despite foot brake being depressed or 
"operated", despite foot brake not being depressed, perform test step No. 4 of electrical check, 
see ELECTRICAL TEST OF MARK 60, VEHICLES FROM M.Y. 10.00 . 
It is also possible that the brake light switch is not correctly adjusted --> Adjusting brake light 
switch, see ADJUSTING BRAKE LIGHT SWITCH .

(1)

During the diagnosis the ABS warning Light for -K47- and for Warning light for brake system -
K118- will flash.

NOTE:

This test is for models with ABS/EDL/ASR/ESP only.

 

2003 Volkswagen New Beetle GLS 

1998-2004 BRAKES On Board Diagnostic (OBD) - New Beetle