Volkswagen New Beetle. Manual - part 1599

 

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Volkswagen New Beetle. Manual - part 1599

 

 

Fig. 15: Connecting VAG 1598/31 Test Box To Control Module Wiring Harness 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Check wiring for open circuit between test box and 6 -pin connector according to Electrical Wiring 
Diagrams. 

terminal 4 + socket 5 

Wire resistance: Max. 1.5 

If no wiring malfunction is found: 

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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

  

Fig. 16: Identifying HO2S -G39- Harness Connector Terminals 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Heated Oxygen Sensor (HO2S) for oxygen sensor after Three Way Catalytic Converter (TWC), checking 

Special tools, test equipment and auxiliary items 

 

2003 Volkswagen New Beetle GLS 

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

  

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

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VAG 1598/31 test box  

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VAG 1526 A or Fluke 83 multimeter  

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VAG 1594 adapter set  

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Electrical Wiring Diagrams  

Test conditions 

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All fuses must be OK. Fuse holder is located behind access panel at far left end of dash  

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Battery voltage must be at least 11.5 V  

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Fuel pump relay must be OK 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 17: Locating Fuses 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Test sequence 

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Connect VAG 1551 scan tool (or VAG 1552). Start engine and select "Address word" 01 of Motronic 
Engine Control Module (ECM) -J220-. Engine must be running at idle speed. Connecting scan tool and 
selecting Motronic Engine Control Module (ECM) -J220-, see VAG 1551, CONNECTING AND 
SELECTING MOTRONIC ENGINE CONTROL MODULE (ECM) -J220-
 .  

Indicated on display 

Fig. 18: Identifying Scan Tool Display - Checking HO2S After TWC (1 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Press buttons -0- and -8- for function "Read measuring value block" and confirm entry with -Q- button. 

Indicated on display 

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

Content   ..  1597  1598  1599  1600   ..