Volkswagen New Beetle. Manual - part 1359

 

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Volkswagen New Beetle. Manual - part 1359

 

 

Display will appear as shown: 

Fig. 185: Scan Tool Display - A/C System Signals (3 Of 6) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Press -Q- button to enter input.  

 

2003 Volkswagen New Beetle GLS 

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

  

Display will appear as shown: 

Fig. 186: Scan Tool Display - A/C System Signals (4 Of 6) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Press --> button.  

Display will appear as shown: 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 187: Scan Tool Display - A/C System Signals (5 Of 6) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Press --> button.  

Display will appear as shown: 

Fig. 188: Scan Tool Display - A/C System Signals (6 Of 6) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

A/C compressor shut-off is checked via Output DTM.  

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The A/C compressor must stop within 5 secs, (visual check) then start approx. every 5 secs. and then 
stop.  

If A/C compressor NOT switched OFF 

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Proceed with Function 03: Output DTM, until completed.  

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Press -0- and -6- buttons to select Function 06: "End output".  

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Press -Q- button to enter input.  

 

2003 Volkswagen New Beetle GLS 

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

  

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

Fig. 189: 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 following Test Box socket and A/C system using Electrical Wiring 
Diagram.  

See appropriate System Wiring Diagram article. 

Up to MY 1999 

Socket 16 

From MY 2000 

Socket 29 

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Wire resistance: 1.5 ohm maximum  

A/C system signal to ECM (engine speed adaptation), checking 

The A/C system signal make sure that the Engine Control Module maintains A/C system operation constant 
regardless of load at idle. 

Test sequence 

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

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Start engine and let idle.  

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

Display will appear as shown (example only):

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

Content   ..  1357  1358  1359  1360   ..