Volkswagen New Beetle. Manual - part 1611

 

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Volkswagen New Beetle. Manual - part 1611

 

 

Motronic Engine Control Module (ECM) -J220- was disconnected from battery positive, readiness code 
must be generated again, see READINESS CODE, GENERATING .  

If display remains at approx. 143.0 °C: 

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Press --> button.  

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Press buttons -0- and -6- for "End output" function and confirm input with -Q- button.  

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Switch off ignition.  

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Check wiring using Electrical Wiring Diagram, see CHECKING WIRING .  

Checking wiring 

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

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Disconnect 4-pin connector from Engine Coolant Temperature (ECT) sensor -G62- with Engine Coolant 
Temperature (ECT) sensor -G2- -arrow-. 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 53: Disconnecting Pin Connector From Engine Coolant Temperature (ECT) Sensor With 
Engine Coolant Temperature (ECT) Sensor
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Check wire for open circuit between test box and 4 -pin connector using Electrical Wiring Diagram. 

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terminal 3 + Socket 93  

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terminal 4 + Socket 108  

Wire resistance: max. 1.5 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 54: Identifying ECT Sensor Harness Connector Terminals 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Check wiring between test box and 4 -pin connector terminal 3 for short circuit to wire terminal 4 and to 
vehicle Ground (GND) using Electrical Wiring Diagram.  

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terminal 3 + socket 108  

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terminal 3 + vehicle Ground (GND)  

Specification: INFINITY ohm 

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Additionally check both wires for short to battery positive. 

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

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