Volkswagen New Beetle. Manual - part 1957

 

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Volkswagen New Beetle. Manual - part 1957

 

 

exhaust MIL must light up. 

If exhaust MIL does not light up when ignition is switched on: 

z

Switch ignition off.  

z

Check wire from ECM to exhaust MIL as follows:  

z

Connect test box to control module wiring harness, see CONNECT TEST BOX FOR WIRING TEST 

z

Bridge sockets 2+47 of test box with the respective adapter cables.  

z

Switch on ignition:  

exhaust MIL must light up. 

If Malfunction Indicator Lamp (MIL) does not light up: 

z

Switch ignition off.  

z

Remove instrument cluster: 

See INSTRUMENT CLUSTER, REMOVING AND INSTALLING 

z

Check wire connection from Engine Control Module (ECM) to Malfunction Indicator Lamp (MIL) -K83-
according to wiring diagram.  

z

Erase DTC memory of Engine Control Module (ECM), see DIAGNOSTIC MODE 4: RESET/ERASE 
DIAGNOSTIC DATA
 .  

z

Generate readiness code, see READINESS CODE, GENERATING . 

If no malfunctions are detected in wire from Engine Control Module (ECM) to Malfunction Indicator 
Lamp (MIL): 

z

Replace Motronic Engine Control Module (ECM) -J220-, see REPLACING ENGINE CONTROL 
MODULE (ECM)
 .  

If exhaust MIL lights up when ignition is switched on: 

z

Start engine and let run at idle: 

Exhaust MIL must 

go out after a few seconds. 

If Malfunction Indicator Lamp (MIL) does not go out: 

z

Switch ignition off.  

z

Remove instrument cluster: 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 1.8L Generic Scan Tool - New Beetle

  

See INSTRUMENT CLUSTER, REMOVING AND INSTALLING

z

Connect test box to control module wiring harness, see CONNECT TEST BOX FOR WIRING TEST 

z

Check wire connection between test box socket 47 and instrument cluster for short circuit to Ground 
(GND) according to wiring diagram.  

z

Erase DTC memory of Engine Control Module (ECM), see DIAGNOSTIC MODE 4: RESET/ERASE 
DIAGNOSTIC DATA
 .  

z

Generate readiness code, see READINESS CODE, GENERATING .  

If no malfunctions are detected in wire from Engine Control Module (ECM) to Malfunction Indicator Lamp 
(MIL): 

z

Replace Motronic Engine Control Module (ECM) -J220-, see REPLACING ENGINE CONTROL 
MODULE (ECM)
 .  

SELECT DIAGNOSTIC MODE 

Recommended special tools and equipment: 

z

VAS 5052 Vehicle Diagnostic and Information System with  

z

VAS 5052/3 diagnostic cable  

Fig. 11: Identifying VAS 5052 Vehicle Diagnostic And Information System 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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)". 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 1.8L Generic Scan Tool - New Beetle

  

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

Diagnostic mode 1: Check measured values 

Requirement 

z

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

Work procedure 

z

Connect diagnostic tester, see CONNECT DIAGNOSTIC TESTER .  

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 1: Checking measured values."  

z

Select the desired measured values "PID XX".  

DIAGNOSTIC MODE 1: CHECK MEASURED VALUES 

DIAGNOSTIC MODE 1: CHECK MEASURED VALUES 

NOTE:

z

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

z

The following list only serves as an overview.  

z

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

PID

Display measuring values

01:

Monitoring status since erasing DTC memory

03:

Condition of the fuel system

04:

Calculated load condition value

05:

Coolant temperature

06:

Short time gasoline -air ratio bank 1

07:

Gasoline-air ratio bank 1

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)

PID

Display measuring values

18:

Availability status of secondary air

19:

Component location of oxygen sensors

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 1.8L Generic Scan Tool - New Beetle

  

z

End diagnosis and switch ignition off.  

Diagnostic mode 2: Checking operating conditions 

Function 

This diagnostic mode displays the operating conditions at which an emission relevant malfunction was detected 
and stored by the Engine Control Module (ECM). 

Work procedure 

z

Connect diagnostic tester, see CONNECT DIAGNOSTIC TESTER .  

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 "PID XX".  

DIAGNOSTIC MODE 2: CHECKING OPERATING CONDITIONS 

z

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 a DTC entry. 

21:

Bank 1 - sensor 2

28:

OBD requirement for which this vehicle is equipped

52:

Sensor current bank 1 sensor 1

NOTE:

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

PID

Display operating conditions

03:

Condition of the fuel system

04:

Calculated load condition value

05:

Coolant temperature

06:

Short time gasoline -air ratio bank 1

07:

Gasoline-air ratio bank 1

12:

Engine rotations per minute (RPM)

13:

Vehicle speed

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 1.8L Generic Scan Tool - New Beetle

  

 

 

 

 

 

 

 

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