Volkswagen New Beetle. Manual - part 1657

 

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Volkswagen New Beetle. Manual - part 1657

 

 

Fig. 10: Identifying Scan Tool Display (3 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Run engine for 2 minutes at idling speed.  

z

Check status of Heated Oxygen Sensor (HO2S) before catalytic converter in display field 2: Display: 
Htg.bC.ON, Htg.bC.OFF (alternating)  

DISPLAY GROUP 41: HEATED OXYGEN SENSOR (HO2S) BEFORE AND AFTER THREE WAY 
CATALYTIC CONVERTER (TWC)
 

 

Display zones

1

2

3

4

Display group 41: Heated Oxygen Sensor (HO2S) before and after Three Way Catalytic Converter 
(TWC)
Display

-

Htg.bC.ON / Htg.bC.OFF

-

Htg.aC.ON / 

Htg.aC.OFF

Indicated

- Heated Oxygen Sensor (HO2S) before 

Three Way Catalytic Converter 

(TWC) ON 

or 

Heated Oxygen Sensor (HO2S) before 

Three Way Catalytic Converter 

(TWC) OFF

Heated Oxygen Sensor 

(HO2S) after Three Way 

Catalytic Converter (TWC) 

ON 

or 

Heated Oxygen Sensor 

(HO2S) after Three Way 

Catalytic Converter (TWC) 

OFF

Working 
range

-

-

-

-

Specification -

Htg.bC.ON 

Htg.bC.OFF 

(occasionally alternating)

-

-

- If the specification is not achieved, see 

CONTINUATION

-

-

 

2003 Volkswagen New Beetle GLS 

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

  

If the specification is obtained: 

z

Press button.  

z

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

z

Switch off ignition.  

Continuation 

If the specifications are not obtained: 

z

Press --> button.  

z

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

z

Switch off ignition.  

z

Remove protective cover -arrows- and separate 6-pin connector (black) -1- to Heated Oxygen Sensor 
(HO2S) before Three Way Catalytic Converter (TWC) -G39-. 

NOTE:

The Heated Oxygen Sensor (HO2S) may be switched ON or OFF depending on 
the operating conditions of the engine, therefore the display in display zone 2 
may show "Htg.bC.ON" or alternating from "Htg.bC.ON" to "Htg.bC.OFF."

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 11: Separating 6-Pin Connector (Black) -1- To HO2S -G39- Before TWC 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Set multimeter to measure resistance and connect it to terminals 3 + 4 of connector to oxygen sensor. 
Check oxygen sensor heating for closed circuit. 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 12: Measuring Resistance Between Terminals 3 And 4 Of HO2S -G39- Before TWC Connector
Courtesy of VOLKSWAGEN OF AMERICA, INC.
 

Specification: 2.5...10 (at room temperature) 

If it is determined that oxygen sensor heating has an open circuit: 

z

Replace Heated Oxygen Sensor (HO2S) -G39-.  

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
 .  

z

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

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

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