Volkswagen New Beetle. Manual - part 1969

 

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Volkswagen New Beetle. Manual - part 1969

 

 

Meaning of exhaust MIL 

The Malfunction Indicator Lamp (MIL) lights up when exhaust relevant malfunctions are recognized by the 
control module for Diesel-Direct fuel injection system. 

Component location of exhaust MIL: 

Fig. 8: Identifying Location Of Exhaust Malfunction Indicator Lamp 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

1. Exhaust Malfunction Indicator Lamp (MIL)  

2. Glow Plug Indicator Light  

Glow Plug Indicator Light has a dual function: 

z

Blinking: Malfunctions were detected which influence drivability.  

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Lighting up when ignition is switched on: Normally appears when starting up a cold diesel engine.  

DIAGNOSTIC MODE, SELECTING 

Recommended special tools and equipment: 

z

VAS 5052 Vehicle Diagnostic and Information System with 

NOTE:

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The exhaust Malfunction Indicator Lamp (MIL) is switched on as soon as 
malfunctions are detected that increases emissions. DTC memory must be 
checked in this case. See DIAGNOSTIC MODE 3: CHECK DTC MEMORY .  

z

DTC memory must still be checked if there are drivability problems or 
customer complaints and the MIL is not lit, since malfunctions can be 
stored without causing the MIL to light immediately.  

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Generic Scan Tool, 1.9L ALH & BEW- New Beetle

  

Fig. 9: Identifying Special Tool VAS 5052 Vehicle Diagnostic And Information System 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

VAS 5052/3 diagnostic cable  

Address word 33 - On-Board Diagnostic (OBD) 

Function 

Via the diagnostic tester, different diagnostic modes can be selected under "address word 33 - On-Board 
Diagnostic (OBD)". 

The following diagnostic modes monitor all components and systems which influence the emission quality. 

Diagnostic mode 1: Check measured values 

Requirement 

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Coolant temperature must be at least 80 °C, PID 5, Coolant temperature.  

Work procedure 

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Connect diagnostic tester. See DIAGNOSTIC TESTER, CONNECTING .  

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Depending on the desired operating condition: switch on ignition 

or start engine and let run at idle. 

z

Under address word 33, select "Diagnostic mode 1: Check measured values."  

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Select the desired measured value(s) "PID XX".  

NOTE:

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The specified values for the respective measuring values can be found at 
the respective component and function tests.  

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Generic Scan Tool, 1.9L ALH & BEW- New Beetle

  

Diagnostic Mode 1 - PID Measured Values 

z

End diagnosis and switch ignition off.  

Diagnostic mode 2: Check operating conditions 

Function 

This diagnostic mode displays the operating conditions at which an emission relevant malfunction was detected 
and stored by the control module for Diesel-Direct fuel injection system. 

Work procedure 

z

Connect diagnostic tester. See DIAGNOSTIC TESTER, CONNECTING .  

z

Depending on the desired operating condition: switch on ignition 

or start engine and let run at idle. 

z

Under address word 33, select "Diagnostic mode 2: Check operating conditions."  

z

Select the desired operating condition(s) "PID XX".  

Diagnostic Mode 2 - PID Operating Conditions 

z

The following list only serves as an overview.  

z

The measured values are sorted according to the PID (parameter-
identifications).  

PID

Display measuring values

01:

Monitoring status since erasing DTC memory

04:

Calculated load condition value

05:

Coolant temperature

11:

Intake manifold pressure

12:

Engine rotations per minute (RPM)

13:

Vehicle speed

14:

Valve timing adjustment at 1. cyl. to "advance"

15:

Intake Air Temperature (IAT)

16:

Air flow quantity at Mass Air Flow (MAF) sensor

17:

Throttle valve position (absolute)

28:

OBD requirement for which this vehicle is designed

33:

Distance driven with MIL on (km)

NOTE:

The operating conditions are sorted according to the PID (parameter-
identifications).

PID

Display operating conditions

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Generic Scan Tool, 1.9L ALH & BEW- New Beetle

  

If DTCs are displayed in "PID 02": 

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Repair stored malfunctions according to DTC table:  

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SAE P0xxx-DTCs. See SAE P0xxx-DTCs .  

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End diagnosis and switch ignition off.  

Diagnostic mode 3: Check DTC Memory 

Function 

This diagnostic mode indicates all stored DTCs of components and systems which are emission relevant. 

Malfunction Indicator Lamp (MIL) in instrument cluster lights up for one DTC entry. See MALFUNCTION 
INDICATOR LAMP (MIL) IN INSTRUMENT CLUSTER
 . 

SAE Diagnostic Trouble Codes (DTCs) 

The DTC always consists of a 5-digit alpha-numeric value with the following meaning: 

Component group: 

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P0xxxx = DTC for drivetrain.  

Norm-Code: 

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P0xxx = DTCs defined by SAE with specified malfunction texts.  

System group: 

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Px0xx = Fuel and air ratio and additional emission regulations  

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Px1xx = Fuel and air ratio.  

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Px2xx = Fuel and air ratio.  

02:

DTC which triggered the current reception of all control module information

04:

Calculated load condition value

05:

Coolant temperature

11:

Intake manifold pressure

12:

Engine rotations per minute (RPM)

13:

Vehicle speed

14:

Valve timing adjustment at 1. cyl. to "advance"

15:

Intake Air Temperature (IAT)

16:

Air flow quantity at Mass Air Flow (MAF) sensor

17:

Throttle valve position (absolute)

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Generic Scan Tool, 1.9L ALH & BEW- New Beetle

  

 

 

 

 

 

 

 

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