Volkswagen New Beetle. Manual - part 680

 

  Index      Volkswagen     Volkswagen New Beetle 1998-2008 year - service repair manual

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  678  679  680  681   ..

 

 

Volkswagen New Beetle. Manual - part 680

 

 

VAG1551 Scan Tool (ST) or with the tester VAS 5051.

The following procedures refer only to the VAG1551 scan tool. 

The malfunction information displayed is used in conjunction with a DTC table, which has information on the 
possible cause of malfunctions and specific corrective actions. 

IDENTIFICATION 

Left-hand drive 

The brake booster boost is produced by vacuum pressure. 

Distinguishing features: 

1. 10" brake booster  

2. Hydraulic unit  

3. Control module, 25-pin (bolted to hydraulic unit)  

Fig. 1: Identifying ABS Left-Hand Drive Distinguishing Features (ITT Mark 20 IE) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Right-hand drive 

The brake booster boost is produced by vacuum pressure. 

Distinguishing features: 

1. 7"/8" brake booster  

2. Hydraulic unit  

3. Control module, 25-pin (bolted to hydraulic unit) 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 2: Identifying ABS Right-Hand Drive Distinguishing Features (ITT Mark 20 IE) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Distinguishing features of ABS & ABS/EDL (ITT Mark 20 IE hydraulic unit), left and right-hand drive 

z

Dimension -A-: 100 mm (vehicles with ABS)  

z

Dimension -A-: 130 mm (vehicles with ABS/EDL)  

z

Dimension -A: -130 mm vehicles with ABS/EDL/ASR 

Fig. 3: Distinguishing Features Of ABS & ABS/EDL (ITT Mark 20 IE hydraulic unit) - Left And 
Right-Hand Drive
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

TECHNICAL DATA 

ABS Control Module (w/EDL) -J104- 

When checking DTC memory, the control module identification will be displayed on the VAG1551 scan tool. 

1J0 907 379D: ABS 

1J0 907 379 E: ABS/EDL 

NOTE:

The following list refers to items in Fig. 3 .

 

2003 Volkswagen New Beetle GLS 

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

  

1 J0 907 379 R / J - ABS/EDL/ASR 

Diagnostic Trouble Code (DTC) memory 

Permanent memory (DTC memory) contents remain even without a supply voltage. 

Data output 

Data output is achieved using "Rapid data transfer" operating mode 1. 

SAFETY PRECAUTIONS AND GENERAL TROUBLESHOOTING INFORMATION 

Necessary technical information 

See SYSTEM WIRING DIAGRAMS in ELECTRICAL.  

See DISC and ANTI-LOCK BRAKE SYSTEM . 

Road test 

CAUTION:

z

ABS is a vehicle safety system; the appropriate knowledge is 
necessary to work on the system.  

z

In order to check complaints and to be able to carry out specific 
troubleshooting, DTC memory must be checked before beginning 
work on the ABS system.  

z

Only disconnect harness connectors when the ignition is switched 
off.  

z

Observe the appropriate instructions regarding the handling of brake 
fluid, see SAFETY PRECAUTIONS . 

See . 

z

ABS malfunctions are indicated by the ABS warning lamp lighting 
up; certain malfunctions will only be recognized at speeds above 20 
km/h (approx. 13 mph) (road test).  

z

If the ABS Warning Light -K47- and the warning light for brake 
system -K118- warning lamps do not light up, but the brake system is 
not functioning correctly, check the conventional braking system.  

WARNING:

z

If you drive the vehicle after a malfunction has been detected by 
OBD, bear in mind that the function of the brake system is limited, 
and there is a risk of accident. The brake pressure at the rear wheels 
is no longer controlled by the Electronic Brake Distribution (EBD) 
function. This can result in excessive braking at the rear, and the 
vehicle may skid unexpectedly under braking.  

 

2003 Volkswagen New Beetle GLS 

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

  

SAFETY PRECAUTIONS 

Changing brake fluid: see BRAKE FLUID, CHANGING . 

If one or two chambers in the brake fluid reservoir are completely empty (e.g. leaks in braking system) bleed 
the hydraulic unit with the VAG 1551 or VAS 5051 Scan Tool in "basic setting" function. 

See  

ABS & ABS/EDL TROUBLESHOOTING FLOW CHART V.A.G 1551 SCAN TOOL / TESTER VAS 
5051 

z

When driving or riding in an airbag-equipped vehicle, NEVER hold 
the scan tool or other test equipment in your hands or lap while in 
motion. Objects between you and the airbag increase the risk of 
injury in an accident.  

z

During a test drive in an airbag-equipped vehicle, test equipment 
must always be fastened to and operated from the rear seat by a 
second technician.  

WARNING:

Brake fluid is poisonous.

CAUTION:

z

Brake fluid must not contact painted parts.  

z

Brake fluid absorbs moisture from the air and must therefore be 
replaced every two years. Use only new, unused and approved brake 
fluid that complies with MVSS 116 DOT 4.  

z

Do not use silicone-based brake fluid (DOT 5). Even the smallest 
traces can cause severe corrosion in the brake system.  

CAUTION: Do not exceed filling pressure of 1 bar (14.5 psi) when filling brake fluid 

using VAS 5234. The brake system will not be completely bled if excessive 
pressure is used.

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

Content   ..  678  679  680  681   ..