Volkswagen New Beetle. Manual - part 1602

 

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Volkswagen New Beetle. Manual - part 1602

 

 

Display: Htg.aC.ON: 

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Specification: 11.0 to 14.5 V  

Display: Htg. aC.ON/Htg.aC.OFF (alternating): 

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Specification: Between 0.0 to 12.0 V fluctuating  

If no voltage is present: 

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Switch off ignition.  

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Remove inner plenum chamber cover, left:  

See PLENUM CHAMBER INNER COVER, REMOVING AND INSTALLING 

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

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 25: Connecting VAG 1598/31 Test Box To Control Module Wiring Harness 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Check wiring for open circuit between test box and 4 -pin connector according to Electrical Wiring 
Diagram. 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 26: Identifying HO2S -G130- Harness Connector Terminals 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

terminal 2 + socket 63: 

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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
 .  

Mass Air Flow (MAF) sensor, checking 

NOTE:

Only gold-plated terminals can be used to repair terminals in the connector for 
the Mass Air Flow (MAF) sensor.

 

2003 Volkswagen New Beetle GLS 

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

  

Special tools, test equipment and auxiliary items 

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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 Diagram  

Test conditions 

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All fuses must be OK  

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Battery voltage must be at least 11.5 V  

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Fuel pump relay must be OK. Fuse holder is located behind access panel at far left end of dash. 

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

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