Volkswagen New Beetle. Manual - part 1605

 

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

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  1603  1604  1605  1606   ..

 

 

Volkswagen New Beetle. Manual - part 1605

 

 

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

z

Check wiring for open circuit between test box and 5 -pin connector using Electrical Wiring Diagram. 

{

terminal 5 + socket 29  

{

terminal 4 + socket 53  

{

terminal 3 + socket 27  

Wire resistance: Max. 1.5 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

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

z

Additionally check wires all for short to one another. 

Specification: 

z

Check wiring additionally for short circuit to battery positive/Ground (GND).  

If no wiring malfunction is found: 

z

Replace Mass Air Flow (MAF) sensor -G70-, see item 2 . 

NOTE:

Socket 1 in Mass Air Flow (MAF) sensor and connector is not occupied.

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

z

Check DTC Memory, if necessary, repair any malfunctions and then Erase DTC Memory, see DTC 
MEMORY OF MOTRONIC ENGINE CONTROL MODULE (ECM) -J220-, CHECKING AND 
ERASING
 .  

z

Read readiness code, see READINESS CODE, DISPLAYING . If DTC memory has been erased or 
Motronic Engine Control Module (ECM) -J220- was disconnected from battery positive, readiness code 
must be generated again, see READINESS CODE, GENERATING .  

Throttle Valve Control Module -J338-, checking 

Components of Throttle Valve Control Module - J338-: Throttle valve drive -G186-, Angle sensor 1 for throttle 
valve drive -G187- and Angle sensor 2 for throttle valve drive -G188-. 

See DIAGNOSIS - 01M 

Special tools, test equipment and auxiliary items 

z

VAG 1551 scan tool or VAG 1552 mobile scan tool with VAG 1551/3B cable  

z

VAG 1598/31 test box  

z

VAG 1526 A or Fluke 83 multimeter  

z

VAG 1594 adapter set  

z

Electrical Wiring Diagram  

Test conditions 

z

Engine not running, ignition switch on  

z

Throttle valve not damaged or dirty  

z

On vehicles with automatic transmission selector lever in "P" or "N" position  

z

Engine Coolant Temperature (ECT) must be at least 80 °C display group 04, display zone 3  

z

Connect VAG 1551 scan tool (or VAG 1552). Switch ignition on and select Motronic Engine Control 
Module (ECM) -J220- with "Address word" 01. Connecting scan tool and selecting Motronic Engine 
Control Module (ECM) -J220-, see VAG 1551, CONNECTING AND SELECTING MOTRONIC 
ENGINE CONTROL MODULE (ECM) -J220- 

NOTE:

z

If the Throttle Valve Control Module -J338- is replaced, the new control 
module must be adapted to the Motronic Engine Control Module (ECM) -
J220-, see MOTRONIC ENGINE CONTROL MODULE (ECM) - J220- TO 
THROTTLE VALVE CONTROL MODULE - J338-, ADAPTING .  

z

On vehicles with an automatic transmission, the transmission control 
module must also be adapted:  

NOTE:

Only gold-plated terminals can be used to repair the terminals in the connector 
for the Throttle Valve Control Module -J338-.

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

Indicated on display 

Fig. 36: Identifying Scan Tool Display - Checking Throttle Valve Control Module (1 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Press buttons -0- and -8- for function "Read measuring value block" and confirm entry with -Q- button. 

Indicated on display 

Fig. 37: Identifying Scan Tool Display - Checking Throttle Valve Control Module (2 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

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

Indicated on display (1 to 4 Display zones) 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

 

 

 

 

 

 

 

Content   ..  1603  1604  1605  1606   ..