Volkswagen New Beetle. Manual - part 1397

 

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Volkswagen New Beetle. Manual - part 1397

 

 

If specification obtained: 

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Switch Fluke 83 multimeter to 20 Volt range.  

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Connect multimeter between terminals 1 and 2 of ECM connector using jumper wires from VW 1594 
Adapter kit. 

Fig. 130: Identifying Change-Over Valve For Intake Manifold Flap -N239- Harness Connector 
Terminals
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Start engine and let idle.  

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Specification: between 5 and 6 Volts  

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Switch OFF ignition.  

 

2003 Volkswagen New Beetle GLS 

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

  

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Voltage value must rise to 11 to 15 Volts (battery Voltage) and after approx. 3 seconds fall to 0 Volts.  

If Voltage values do not change as described: 

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Connect VAG1598/22 (or 1598/31) Test Box to ECM wiring harness. 

Fig. 131: Connecting VAG1598/22 (Or 1598/31) Test Box To ECM Wiring Harness 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Check wiring for open circuit between Test Box and connector using Wiring diagram. 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 132: Identifying Change-Over Valve For Intake Manifold Flap -N239- Harness Connector 
Terminals
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Up to MY 1999 

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Terminal 1 + socket 3  

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Terminal 2 + sockets 2 and 28  

From MY 2000 

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Terminal 1 + socket 81  

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Terminal 2 + sockets 1 and 2  

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Wire resistance: 1.5 ohm maximum  

 

2003 Volkswagen New Beetle GLS 

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

  

z

Check wires for shorting to: one another, Ground and Battery +.  

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Specification: INFINITY ohm  

If wiring OK: 

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Replace Engine Control Module -J248-. See Engine Control Module (ECM), replacing .  

DIESEL DIRECT FUEL INJECTION (DFI) ENGINE CONTROL MODULE (ECM) -J248-, 
REPLACING AND CODING 

Engine Control Module (ECM), replacing 

Special tools 

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VAG1551/1552 Scan Tool using VAG1551/3 Adapter cable  

Work sequence 

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Print out the ECM identification (and thereby the previous ECM coding) as follows:  

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Connect VAG1551/1552 Scan Tool. See VAG1551/1552 SCAN TOOL, CONNECTING .  

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

Display will appear as shown (I.D. example only):

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

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