Volkswagen New Beetle. Manual - part 1670

 

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Volkswagen New Beetle. Manual - part 1670

 

 

If the specification is obtained: 

z

Start engine and run at idling speed. 

Temperature value must increase uniformly 

z

Press --> button.  

z

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

Continuation of check when display approx. - 48 °C: 

z

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

NOTE:

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Temperature increases in steps of 1.0 C.  

z

If irregular engine running occurs in certain temperature ranges and 
the temperature figure does not increase without interruption, the 
temperature signal is temporarily interrupted and the sensor must be 
replaced.  

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 49: Disconnecting Pin Connector From Engine Coolant Temperature (ECT) Sensor With 
Engine Coolant Temperature (ECT) Sensor
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Bridge connector terminals 3 + 4 using auxiliary cables from VAG 1594 and observe display. 

If display jumps to approx. 143.0 °C: 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 50: Identifying ECT Sensor Harness Connector Terminals 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Press --> button.  

z

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

z

Switch off ignition.  

z

Replace Engine Coolant Temperature (ECT) sensor -G62- with Engine Coolant Temperature (ECT) 
sensor -G2 -, see item 28 .  

z

Check DTC Memory, if necessary, repair any malfunctions and then Erase DTC Memory, see DTC 
MEMORY OF MOTRONIC ENGINE CONTROL MODULE (ECM) -J220-, CHECKING AND 
ERASING
 .  

 

2003 Volkswagen New Beetle GLS 

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

  

z

Read readiness code, see READINESS CODE, DISPLAYING . If DTC memory has been erased or 
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. -48.0 C: 

z

Press --> button.  

z

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

z

Switch off ignition.  

z

Check wiring using Electrical Wiring Diagram, see CHECKING WIRING .  

Continuation of check when display approx. 143.0 °C: 

z

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

  

 

 

 

 

 

 

 

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