Volkswagen New Beetle. Manual - part 439

 

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Volkswagen New Beetle. Manual - part 439

 

 

Fig. 200: VAG 1551 Scan Tool Display - Diagnostic Trouble Code Memory Checking (1 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Indicated on display: 

z

Press -Q- button to confirm input. 

Fig. 201: VAG 1551 Scan Tool Display - Diagnostic Trouble Code Memory Checking (2 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

The number of stored malfunctions appear in the display. 

The number of stored DTCs or "No DTC s recognized" appears in the display and are printed out one after 
another. 

z

When the last DTC has been displayed and printed out, rectify malfunctions as described in DTC table. 
See Diagnostic Trouble Code (DTC) table 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ACCESSORIES & EQUIPMENT On Board Diagnostic (OBD) - New Beetle (Instrument Cluster, Data Bus & 

Anti-theft Immobilizer)

  

Fig. 202: VAG 1551 Scan Tool Display - Diagnostic Trouble Code Memory Checking (3 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

If "No DTC recognized" is displayed, the program will return to the initial position after pressing --> button. 

Fig. 203: VAG 1551 Scan Tool Display - Diagnostic Trouble Code Memory Checking (4 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Indicated on display (select function): 

If display not indicated as shown: 

See Scan tool operating instructions 

z

End output (function 06). See END OUTPUT (FUNCTION 06) .  

z

Switch off ignition and disconnect Data Link Connector (DLC). 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ACCESSORIES & EQUIPMENT On Board Diagnostic (OBD) - New Beetle (Instrument Cluster, Data Bus & 

Anti-theft Immobilizer)

  

Fig. 204: VAG 1551 Scan Tool Display - Diagnostic Trouble Code Memory Checking (5 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

DIAGNOSTIC TROUBLE CODE (DTC) TABLE 

DIAGNOSTIC TROUBLE CODE 

NOTE:

z

The following table lists all malfunctions, with the corresponding 5 digit 
code numbers, that can be recognized by control module with indicator 
unit in instrument cluster insert -J285- and printed out by the VAG 1551 
Scan Tool (ST).  

z

If malfunctions do not occur regularly, these are displayed as occurring 
sporadically ("SP").  

z

DTC codes appears only on print-out.  

z

Before replacing components, check the wiring and connections to these 
components as well as ground connections, according to wiring diagram.  

z

When repair has been carried out, the Diagnostic Trouble Code (DTC) 
memory must always be erased and checked again with VAG 1551 Scan 
Tool (ST).  

z

If there is a specific complaint and no malfunctions are recognized after 
checking Diagnostic Trouble Code (DTC) memory, carry out function 03, 
OUTPUT DIAGNOSTIC TEST MODE (DTM), (FUNCTION 03) or function 08, 
READ MEASURING VALUE BLOCK (FUNCTION 08) .  

VAG 1551 
print out

Possible cause

Possible effects

Corrective Action

01044 
Control 
module 
incorrectly 
coded

z

A control module 

connected to vehicle CAN 

Data Bus network is 

incorrectly coded  

z

A control module 

connected to vehicle CAN 

Driveability 

problems (shift 

pressure, load shift 

impact) 

Dynamic driving 

regulation 

z

Check DTC memory of all 

control modules connected to 

vehicle CAN Data Bus, 

troubleshoot and repair as 

necessary. 

z

Confirm correct coding of all 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ACCESSORIES & EQUIPMENT On Board Diagnostic (OBD) - New Beetle (Instrument Cluster, Data Bus & 

Anti-theft Immobilizer)

  

DIAGNOSTIC TROUBLE CODE 

DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, ERASING (FUNCTION 05) 

Prerequisites 

z

Check DTC memory. See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING 
(FUNCTION 02)
 .  

z

All malfunctions repaired.  

After checking DTC memory: 

Indicated on display (select function): 

z

Press buttons -0- and -5- to select function 05, "Erase DTC memory." 

Data Bus network is 

malfunctioning  

inoperative

control modules coding 

connected to vehicle CAN 

Data Bus. 

z

Replace control module. 

VAG 1551 
print out

Possible cause

Possible effects

Corrective Action

01312 
Data Bus 
Drive 

z

Faulty  

z

Fault in CAN 

Data Bus 

Wiring  

z

Data Bus Drive 

in Bus-Off 

condition  

Driveability 

problems (shift 

pressure, load shift 

impact) 

Dynamic driving 

regulation 

inoperative

z

Read measuring value block, function 

08, See READ MEASURING 

VALUE BLOCK (FUNCTION 08)

z

Check DTC memory of all control 

modules connected to vehicle CAN 

Data Bus, troubleshoot and repair as 

necessary 

z

Confirm correct coding of all control 

modules coding connected to vehicle 

CAN Data Bus. 

z

Check CAN Data Bus wiring using 

wiring diagram 

NOTE:

Erasing DTC memory (function 05) is only possible after checking DTC memory 
(function 02). If DTC memory cannot be erased, check DTC memory again and 
rectify indicated malfunctions.

 

2003 Volkswagen New Beetle GLS 

1998-2004 ACCESSORIES & EQUIPMENT On Board Diagnostic (OBD) - New Beetle (Instrument Cluster, Data Bus & 

Anti-theft Immobilizer)

  

 

 

 

 

 

 

 

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