Volkswagen New Beetle. Manual - part 1975

 

  Index      Volkswagen     Volkswagen New Beetle 1998-2008 year - service repair manual

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  1973  1974  1975  1976   ..

 

 

Volkswagen New Beetle. Manual - part 1975

 

 

Fig. 4: Identifying VAG1598/22 Test Box (80-Pin ECM) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Vehicles with 121-pin Engine Control Module (ECM, engine code AVH, AZG, BDC) 

z

VAG1598/31 test box 

Fig. 5: Identifying VAG1598/31 Test Box (121-Pin ECM) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Requirement 

z

Ignition switched off.  

Work procedure 

z

Remove inner cover, left plenum chamber, to do this, slide center cover -1- of plenum chamber forward 
out of catch and remove from instrument panel. 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle

  

Fig. 6: Removing Inner Cover, Left Plenum Chamber By Sliding Center Cover Of Plenum 
Chamber Forward
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Remove three bolts -1-. 

Fig. 7: Removing Three Bolts 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Lift left cover -1- of plenum chamber in center of instrument panel (arrow A) and thereby unclip (front 
edge clips, back edge clamps). 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle

  

Fig. 8: Lifting Left Cover Of Plenum Chamber In Center Of Instrument Panel And Unclip 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Pull cover -1- toward vehicle center out of bracket underneath A-pillar (arrow B).  

z

Then disengage connector from control module and disconnect.  

Vehicles with 80-pin Engine Control Module (ECM, engine code AEG) 

z

Connect VAG1598/22 test box at control module wiring harness. 

Fig. 9: Connecting VAG1598/22 Test Box At Control Module Wiring Harness (80-Pin ECM) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Vehicles with 121-pin Engine Control Module (ECM, engine code AVH, AZG, BDC) 

z

Connect VAG1598/31 test box at control module wiring harness. Engine Control Module (ECM) is not 
connected. 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle

  

Fig. 10: Connecting VAG1598/31 Test Box At Control Module Wiring Harness (121-Pin ECM) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Continuation for all vehicles 

When harness connectors are disconnected from the Engine Control Module (ECM) or the battery is 
disconnected, all adaptation values in the control module are erased. DTC memory content will remain intact 
however. If the engine is started after this, rough, uneven idle can result. In this case, the readiness code must be 
generated again. See READINESS CODE, GENERATING . 

Malfunction Indicator Lamp (MIL) in instrument cluster, checking 

Meaning of emissions MIL 

The Malfunction Indicator Lamp (MIL) lights up when emissions relevant malfunctions are recognized by the 
Engine Control Module (ECM). 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle

  

 

 

 

 

 

 

 

Content   ..  1973  1974  1975  1976   ..