Volkswagen New Beetle. Manual - part 1646

 

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Volkswagen New Beetle. Manual - part 1646

 

 

If the specification is not obtained: 

z

Check wiring for open circuit between 2 -pin connector terminal 1 and central electric using Electrical 
Wiring Diagram. 

If the specification is obtained: 

z

Remove inner plenum chamber cover, left: 

See PLENUM CHAMBER INNER COVER, REMOVING AND INSTALLING 

z

Connect VAG 1598/31 test box to control module wiring harness. Motronic Engine Control Module 
(ECM) -J220- is not connected by this action. 

Fig. 171: Connecting VAG 1598/31 Test Box To Control Module Wiring Harness 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

Courtesy of VOLKSWAGEN OF AMERICA, INC.

z

Check wiring for open circuit between test box and 2 -pin connector using Electrical Wiring Diagram. 

Fig. 172: Identifying Clutch Vacuum Vent Valve Switch Harness Connector Terminals 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

terminal 2 + socket 39 

Wire resistance: Max. 1.5 

If the specification is obtained: 

z

Additionally check wires for short to one another.  

z

Additionally check wiring for short to battery positive or Ground (GND). 

If no wiring malfunction is found: 

z

Replace Motronic Engine Control Module (ECM) -J220-, see MOTRONIC ENGINE CONTROL 
MODULE (ECM) - J220-, REPLACING 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

Signal from Brake Light Switch -F- and Brake Vacuum Vent Valve Switch -F47-, checking 

Special tools, test equipment and auxiliary items 

z

VAG 1551 scan tool or VAG 1552 mobile scan tool with VAG 1551/3B cable  

z

VAG 1598/31 test box  

z

VAG 1526 A or Fluke 83 multimeter  

z

VAG 1594 adapter set  

z

Electrical Wiring Diagram  

Test conditions 

z

All fuses must be OK 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

Fig. 173: Locating Fuses 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Battery voltage must be at least 11.5 V  

z

Brake lights functioning OK  

z

All electrical accessories, e.g. lights and rear window defroster must be switched off  

z

Selector lever must be in position "P" or "N" on vehicles with an automatic transmission  

Test sequence 

z

Connect VAG 1551 scan tool ((VAG 1552). Switch ignition on and select Motronic Engine Control 
Module (ECM) -J220- with "Address word" 01. Connecting scan tool and selecting Motronic Engine 
Control Module (ECM) -J220-, see VAG 1551, CONNECTING AND SELECTING MOTRONIC 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

 

 

 

 

 

 

 

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