Volkswagen New Beetle. Manual - part 1942

 

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Volkswagen New Beetle. Manual - part 1942

 

 

See INSTRUMENT CLUSTER . 

z

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

See appropriate System Wiring Diagram article. 

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 emissions MIL lights up when ignition is switched on: 

z

Start engine and let run at idle: Emissions 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:  

See INSTRUMENT CLUSTER . 

z

Connect test box to control module wiring harness. See TEST BOX FOR WIRING TEST, 
CONNECTING
 .  

Vehicles with engine code AEG 

z

Check wire connection between test box socket 17 and instrument cluster for short circuit to Ground 
(GND) according to wiring diagram:  

See appropriate System Wiring Diagram article. 

Vehicles with engine code AVH, AZG and BDC 

z

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

See appropriate System Wiring Diagram article. 

Continuation for all vehicles 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle

  

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)
 .  

DIAGNOSTIC MODE, SELECTING 

Recommended special tools and equipment 

z

VAS 5052 Vehicle Diagnostic and Information System with 

Fig. 13: Identifying VAS 5052 Vehicle Diagnostic And Information System (Selecting Diagnostic 
Mode)
 
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 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle

  

Requirement 

z

Coolant temperature must be at least 80° C, 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".  

PID DISPLAY MEASURING VALUES (DIAGNOSTIC MODE 1) 

Vehicles with engine code AEG 

If DTCs are displayed in "PID 02": 

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

02:

DTC 

z

Only for vehicles with engine code AEG 

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)

18:

Availability status of secondary air

21:

Bank 1 - sensor 2

28:

OBD requirement for which this vehicle is designed

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle

  

z

Repair stored malfunctions according to DTC table:  

z

SAE P0xxx-DTCs. See SAE P0xxx-DTCs .  

z

SAE P1xxx-DTCs. See SAE P1XXX-DTCS .  

z

SAE P2xxx-DTCs. See SAE P2xxx-DTCs .  

Continuation for all vehicles 

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".  

PID AND DISPLAY OPERATING CONDITIONS (DIAGNOSTIC MODE 2) 

Vehicles with engine code AEG 

If DTCs are displayed in "PID 02": 

z

Repair stored malfunctions according to DTC table: 

NOTE:

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

PID

Display operating conditions

02:

DTC which triggered the current reception of all control module information 

z

Only for vehicles with engine code AEG 

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), 2.0L Generic Scan Tool - New Beetle

  

 

 

 

 

 

 

 

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