Volkswagen New Beetle. Manual - part 1464

 

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Volkswagen New Beetle. Manual - part 1464

 

 

Fig. 31: Identifying Location Of Fuses 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Test sequence 

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Connect VAG 1551 Scan Tool (or VAG 1552 Scan Tool) and with ignition switched on select engine 
electronics with "Address word" 01:  

See V.A.G 1551 Scan Tool, Connecting And Selecting Engine Control Module . 

Indicated on display 

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Press buttons -0- and -8- for function "Read Measured Value Block" and confirm entry with -Q- button.  

Indicated on display 

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Press buttons -0-, -6- and -2- for "Display group number 62" and confirm entry with -Q- button.  

Indicated on display: (1...4 = Display zones)

NOTE:

Fuse box is located behind access panel at far left end of dash.

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Fuel System - New Beetle, 1.8L (APH, AWV & AWP)

  

Fig. 32: V.A.G 1551 Scan Tool Display - Checking Throttle Position Sensor 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Check specification of TP sensor -G79- at idling stop in display zone 3. 

Specification: 6 to 96% 

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Check specification of Throttle Position (TP) sensor -G185- at idling stop in display zone 4. 

Specification: 3 to 48% 

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Operate accelerator pedal slowly until Wide Open Throttle and observe the angle indication in display 
fields 3 and 4: 

The percent indication in display field 3 must rise evenly. Specified range of 6 to 96% will not be used in 
it's entirety. 

The percent figures in display zone 4 must rise evenly. The tolerance range of 3 to 48% is not covered 
completely. 

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Press --> button.  

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

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Switch ignition off.  

If the display does not indicate as described:

NOTE:

The Engine Control Module (ECM) calculates the voltage value of the angle 
sensor in percent relative to 5 volts and displays this value (5 volts supply 
voltage represents 100%).

NOTE:

The indicated value in display field 3 must always be approximately twice 
as large as the value in display field 4.

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Fuel System - New Beetle, 1.8L (APH, AWV & AWP)

  

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Check voltage supply and wiring connections of Throttle Position (TP) sensor -G185- and -G79-. See 
CHECKING VOLTAGE SUPPLY AND WIRING TO CONTROL MODULE .  

Checking voltage supply and wiring to control module 

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Remove driver side storage compartment 

See GLOVE BOX, REMOVING AND INSTALLING 

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Disconnect 6-pin connector for Throttle Position (TP) sensors -G79- and -G185-.  

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Switch ignition on.  

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Connect multimeter for voltage measurement at following terminals of connector using adapter cables 
from VAG 1594 A. 

Fig. 33: Connecting Multimeter For Voltage Measurement Terminals Of Connector Using Adapter 
Cables From VAG 1594 A
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Contact 1 + Ground (GND)  

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Terminal 1 + 5  

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Terminal 2 + Ground (GND)  

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Terminal 2 + 3  

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Specified value at least 4.5 V  

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Switch ignition off.  

If the specifications are not obtained: 

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Remove inner plenum chamber cover, left: 

See PLENUM CHAMBER INNER COVER, REMOVING AND INSTALLING 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Fuel System - New Beetle, 1.8L (APH, AWV & AWP)

  

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Connect test box VAG 1598/31 to control module wiring harness. Engine Control Module is not 
connected by this action. 

Fig. 34: Connecting Test Box VAG 1598/31 To Control Module Wiring Harness 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Check wiring between test box and connector for open circuit according to wiring diagram. 

Fig. 35: Identifying Connector Terminals 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Contact 1 + socket 72  

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Contact 2 + socket 73  

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Contact 3 + socket 36  

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Contact 4 + socket 35  

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Contact 6 + socket 34 

Vehicles with automatic transmission:

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Fuel System - New Beetle, 1.8L (APH, AWV & AWP)

  

 

 

 

 

 

 

 

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