Volkswagen New Beetle. Manual - part 1354

 

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Volkswagen New Beetle. Manual - part 1354

 

 

Fig. 168: Connecting VAG1598/22 (Or 1598/31) Test Box To ECM Wiring Harness (Up To MY 99)
Courtesy of VOLKSWAGEN OF AMERICA, INC.
 

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Check following combinations for open circuits and/or short to positive or negative: 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Diesel Fuel Injection, 1.9L ALH - New Beetle

  

Fig. 169: Identifying Throttle Position Sensor Harness Connector Terminals (Up To MY 99) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Up to MY 1999 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Diesel Fuel Injection, 1.9L ALH - New Beetle

  

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Wiring between connector terminal 1 and Test Box socket 24.  

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Wiring between connector terminal 2 and Test Box socket 11.  

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Wiring between connector terminal 3 and Test Box socket 23.  

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Wiring between connector terminal 4 and Test Box socket 12.  

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Wiring between connector terminal 5 and Test Box socket 8.  

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Wiring between connector terminal 6 and Test Box socket 25.  

From MY 2000 

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Wiring between connector terminal 1 and Test Box socket 63.  

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Wiring between connector terminal 2 and Test Box socket 12.  

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Wiring between connector terminal 3 and Test Box socket 50.  

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Wiring between connector terminal 4 and Test Box socket 69.  

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Wiring between connector terminal 5 and Test Box socket 70.  

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Wiring between connector terminal 6 and Test Box socket 51.  

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Correct any open/short circuit as required.  

If neither an open or short circuit exists: 

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Replace Engine Control Module -J248-.  

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Display the Readiness code. See READINESS CODE, DISPLAYING .  

If DTC memory was erased: 

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Set the readiness code. See READINESS CODE, SETTING .  

Throttle Position (TP) sensor -G79-, checking from MY 99 

Throttle Position (TP) sensor -G79- is located on accelerator pedal and communicates physical pedal position to 
Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM). 

Special tools 

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VAG1551/1552 Scan Tool with VAG1551/3 Adapter cable  

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VAG1598/22 Test Box (MY 1999)  

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VAG1598/31 Test Box (from MY 2000)  

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Fluke 83 multimeter, or equivalent  

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VW 1594 Adapter kit  

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Electrical Wiring Diagrams, Troubleshooting & Component Locations  

Test sequence 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Diesel Fuel Injection, 1.9L ALH - New Beetle

  

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Switch ON ignition but do not start engine.  

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Press -0- and -1- buttons to select Address word 01: "Engine electronics"  

Display will appear as shown (example only): 

Fig. 170: Scan Tool Display - Throttle Position Sensor, From MY 99 (1 Of 6) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Press --> button.  

Display will appear as shown: 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Diesel Fuel Injection, 1.9L ALH - New Beetle

  

 

 

 

 

 

 

 

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