Volkswagen New Beetle. Manual - part 376

z

Displayed after pressing -C- button.  

Indicated on display: 

z

Enter alternate display group number as needed, See tables beginning. See DISPLAY GROUPS, 
INTERPRETING . 

Fig. 223: VAG 1551 Scan Tool Display - Read Measuring Value Block (5 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

The condition of the databus function for control modules which are connected to the power-train databus is 
displayed in display groups 125 and 126. 

The display fields for control modules which are not installed remain empty. 

DISPLAY GROUPS, INTERPRETING 

Display group 125 

NOTE:

z

Display fields always show actual values transmitted from senders 
and sensors. However, instrument cluster display values can differ 
from those in the display fields due to internal filtering.  

z

Other display groups are possible, but are not required for On Board 
Diagnostic program!  

NOTE:

z

Display fields in display groups 125 and 126 provide the CAN Data Bus 
function status codes of various control modules connected to the vehicle 
CAN Data Bus network.  

z

If a vehicle is not equipped with control module(s) or components listed in 
the following display groups, the applicable display field remains blank.  

 

2003 Volkswagen New Beetle GLS 

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

Anti-theft Immobilizer)

  

Fig. 224: Display Group 125 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Evaluating display group number 125 

EVALUATING DISPLAY GROUP NUMBER 125 

z

Display fields may vary depending on instrument cluster manufacturer 
(VDO or MMO).  

NOTE:

For evaluation of Fig. 224 , see Evaluating display group number 125 .

Display 
field

Description

Display

Corrective actions

1

Engine Control 

Module (ECM) -

J220-

Engine 1 = OK 

Data transfer from ECM 

over CAN Data Bus 

network OK 

Engine 0 = Not OK 

No data transfer from 

Engine Control Module 

(ECM) over CAN Data Bus 

network

No data transfer from CM over CAN Data 

Bus network (code 0): 

z

Check wiring and connections for 

CAN Data Bus to applicable control 

module using wiring diagram 

2

Transmission Control 

Module (TCM) -

J217-

Transm. 1 = OK 

Data transfer from TCM 

over CAN Data Bus 

network OK 

Transm. 0 = not OK 

No data transfer from TCM 

over CAN Data Bus 

network

3

ABS Control Module 

-J213-

ABS 1 = OK 

Data transfer from ABS 

control module over CAN 

No data transfer from CM over CAN Data 

Bus network (code 0): 

 

2003 Volkswagen New Beetle GLS 

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

Anti-theft Immobilizer)

  

Display group 126 

Fig. 225: Display Group 126 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Evaluating display group number 126 

EVALUATING DISPLAY GROUP NUMBER 126 

Data Bus network OK 

ABS 0 = not OK 

No data transfer from ABS 

control module over CAN 

Data Bus network

z

Check wiring and connections for 

CAN Data Bus to applicable control 

module using wiring diagram 

4

Airbag Control 

Module -J234-

Airbag 1 = OK 

Data transfer from airbag 

control module over CAN 

Data Bus network OK 

Airbag 0 = not OK, 

No data transfer from airbag 

control module over CAN 

Data Bus network

NOTE:

For evaluation of Fig. 225 , see Evaluating display group number 126 .

Display 
field

Description

Display

Corrective actions

2

Airbag control 

module -J234-

Airbag 1 = OK 

Data transfer from airbag 

control module over CAN 

Data Bus network OK 

Airbag 0 = not OK 

No data transfer from sensor or control 

module over CAN Data Bus network (code 

0): 

z

Check wiring and connections for 

 

2003 Volkswagen New Beetle GLS 

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

Anti-theft Immobilizer)

  

ANTI-THEFT IMMOBILIZER, ON BOARD DIAGNOSTIC (OBD) 

GENERAL INFORMATION 

Anti-theft immobilizer system/component description and repairs: See ANTI-THEFT IMMOBILIZER .

No data transfer from airbag 

control module over CAN 

Data Bus network

CAN Data Bus to airbag control 

module using wiring diagram 

NOTE:

All anti-theft immobilizer OBD program functions must be performed using the 
VAS 5051 Vehicle Diagnostic Testing and Information System in operating 
mode "Guided Fault Finding" or "Vehicle Self-Diagnosis".

 

2003 Volkswagen New Beetle GLS 

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

Anti-theft Immobilizer)