Volkswagen New Beetle. Manual - part 1945

 

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Volkswagen New Beetle. Manual - part 1945

 

 

z

Check oxygen sensor heater for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC). 
See OXYGEN SENSOR HEATER FOR OXYGEN SENSOR BEHIND THREE WAY 
CATALYTIC CONVERTER (TWC), CHECKING
 .  

z

Short circuit to Ground (GND) or open circuit in wiring in oxygen sensor or in wire:  

z

Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC). 
See CHECK OXYGEN SENSOR AND OXYGEN SENSOR REGULATION BEHIND 
CATALYTIC CONVERTER
 .  

If the specified value is exceeded: 

z

Short circuit to B+ in oxygen sensor or in wire:  

z

Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC). 
See CHECK OXYGEN SENSOR AND OXYGEN SENSOR REGULATION BEHIND 
CATALYTIC CONVERTER
 .  

Evaluation test-ID 129 Bank 1 Sensor 1: Actual value of oxygen sensor voltage (Vehicles with engine code AVH, AZG, BDC) 

EVALUATION TEST-ID 129 BANK 1 SENSOR 1: ACTUAL VALUE OF OXYGEN SENSOR 
VOLTAGE (AVH, AZG, BDC)
 

If specified values are not obtained: 

z

Replace Heated Oxygen Sensor (HO2S) 1 Bank 1 -G39- before catalytic converter. See item 2 in 
EXHAUST MANIFOLD, FRONT EXHAUST PIPE WITH THREE WAY CATALYTIC 
CONVERTER (TWC) AND ATTACHMENTS (VEHICLES WITH ENGINE CODE AVH, AZG, 
BDC)
 .  

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 .  

Evaluation test-ID 130 Bank 1 Sensor 1: Control barrier voltage (Vehicles with engine code AVH, AZG, BDC) 

EVALUATION TEST-ID 130 BANK 1 SENSOR 1: CONTROL BARRIER VOLTAGE (AVH, AZG, 
BDC)
 

If specified values are not obtained: 

Oxygen sensor

Specified value:

min.

max.

Bank 1 sensor 1

0,648

1,992

Oxygen sensor

Specified value:

min.

max.

Bank 1 sensor 1

0,648

1,992

 

2003 Volkswagen New Beetle GLS 

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

  

z

Replace Heated Oxygen Sensor (HO2S) 1 Bank 1 -G39- before catalytic converter. See item 2 in 
EXHAUST MANIFOLD, FRONT EXHAUST PIPE WITH THREE WAY CATALYTIC 
CONVERTER (TWC) AND ATTACHMENTS (VEHICLES WITH ENGINE CODE AVH, AZG, 
BDC)
 .  

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 .  

Evaluation test-ID 131 Bank 1 Sensor 1: Dynamic value (Vehicles with engine code AVH, AZG, BDC) 

EVALUATION TEST-ID 131 BANK 1 SENSOR 1: DYNAMIC VALUE (AVH, AZG, BDC) 

If specified values are not obtained: 

z

Replace Heated Oxygen Sensor (HO2S) 1 Bank 1 -G39- before catalytic converter. See item 2 in 
EXHAUST MANIFOLD, FRONT EXHAUST PIPE WITH THREE WAY CATALYTIC 
CONVERTER (TWC) AND ATTACHMENTS (VEHICLES WITH ENGINE CODE AVH, AZG, 
BDC)
 .  

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 .  

Evaluation test-ID 132 Bank 1 Sensor 1: Oxygen sensor shift via oxygen sensor control behind Three Way Catalytic Converter 
(TWC) (bank 1 sensor 2) (Vehicles with engine code AVH, AZG, BDC) 

EVALUATION TEST-ID 132 BANK 1 SENSOR 1: OXYGEN SENSOR SHIFT VIA OXYGEN 
SENSOR CONTROL (AVH, AZG, BDC)
 

If specified values are not obtained: 

z

Replace Heated Oxygen Sensor (HO2S) 1 Bank 1 -G39- before catalytic converter. See item 2 in 
EXHAUST MANIFOLD, FRONT EXHAUST PIPE WITH THREE WAY CATALYTIC 
CONVERTER (TWC) AND ATTACHMENTS (VEHICLES WITH ENGINE CODE AVH, AZG, 
BDC)
 .  

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 

Oxygen sensor

Specified value:

min.

max.

Bank 1 sensor 1

0,1

3,0

Oxygen sensor

Specified value:

min.

max.

Bank 1 sensor 1

-0,03

0,03

 

2003 Volkswagen New Beetle GLS 

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

  

Diagnostic mode 6: Check test results of components that are not continuously monitored 

Function 

This diagnostic mode displays the test results of emission relevant components and systems which are not 
continuously monitored. 

The values of the individual test results must reach the specified value or must be within the min.- and max.-
limits. 

DIAGNOSTIC MODE 6: CHECK TEST RESULTS OF COMPONENTS NOT CONTINUOUSLY 
MONITORED
 

Test-ID 01: Catalytic converter 

Test requirements 

z

There must not be any DTCs stored in DTC memory. See DIAGNOSTIC MODE 3: CHECK DTC 
MEMORY
 .  

z

Coolant temperature must be at least 80° C. See DIAGNOSTIC MODE 1: CHECK MEASURED 
VALUES
 .  

Work procedure 

z

Read readiness code. See READ READINESS CODE .  

z

Let engine run at idle.  

z

Under address word 33, select "Diagnostic mode 6: Check test results of components that are not 
continuously monitored".  

z

Select the "Test-ID 01: Catalytic converter".  

z

Check specified values at idle.  

EVALUATION TEST-ID 01: CATALYTIC CONVERTER 

Test- 
ID

Component, System

Test

01:

Catalytic converter

See TEST-ID 01: CATALYTIC CONVERTER

03:

Secondary Air Injection (AIR) 

system

See Test-ID 03: Secondary Air Injection (AIR) 

system

05:

Tank ventilation system

See Test-ID 05: Tank ventilation system

Vehicles with engine code

AEG

AVH, AZG, 

BDC

Specified 

value:

Specified 

value:

min.

max.

min.

max.

Catalytic converter monitoring bank 1, aging 
value

 

 

 

 

 

2003 Volkswagen New Beetle GLS 

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

  

z

End diagnosis and switch ignition off.  

If specified values are not obtained: 

z

Replace the front exhaust pipe with catalytic converter:  

z

Vehicles with engine code AEG. See item 13 in EXHAUST SYSTEM COMPONENTS, REMOVING 
AND INSTALLING
 .  

z

Vehicles with engine code AVH, AZG, BDC. See item 10 in EXHAUST MANIFOLD, FRONT 
EXHAUST PIPE WITH THREE WAY CATALYTIC CONVERTER (TWC) AND 
ATTACHMENTS (VEHICLES WITH ENGINE CODE AVH, AZG, BDC)
 .  

Continuation for all vehicles 

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 .  

Test-ID 03: Secondary Air Injection (AIR) system 

Test requirements 

z

There must not be any DTCs stored in DTC memory. See DIAGNOSTIC MODE 3: CHECK DTC 
MEMORY
 .  

Work procedure 

z

Read readiness code. See READ READINESS CODE .  

z

Let engine run at idle.  

z

Under address word 33, select "Diagnostic mode 6: Check test results of components that are not 
continuously monitored".  

z

Up to model year 1999  

-

2.00

-

-

z

Up to model year 2000  

-

0.35

-

-

z

From model year 2001  

-

-

0.90

-

z

From model year 2003  

-

-

0.90

-

Catalytic converter monitoring bank 1, aging 
value, short test

 

 

 

 

z

Up to model year 1999  

-

2.00

-

-

z

Up to model year 2000  

-

0.44

-

-

z

From model year 2001  

-

-

0.80

-

z

From model year 2003  

-

-

0.80

-

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

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