Volkswagen New Beetle. Manual - part 1693

 

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Volkswagen New Beetle. Manual - part 1693

 

 

Indicated on display (1 to 4 - Display zones)

Fig. 122: Identifying Scan Tool Display - Checking Aging, HO2S Before TWC (3 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Adjust RPMs with VAG1788/10 RPM adjuster to 1800 to 2200RPM.  

z

Check specifications in display zones 1 to 4.  

z

Maintain engine speed at 1800...2200 rpm until display in display zone 4 jumps from "Test OFF" to "Test 
ON". Three Way Catalytic Converter (TWC) temperature in display zone 2 must be 350 to 500 °C  

z

Continue to maintain speed at 1800...2200 rpm until specification "B1-S1 OK" appears in display zone 4. 

OXYGEN SENSOR CONTROL SPECIFICATION 

 

Display zones

1

2

3

4

Display group 34: Oxygen sensor aging diagnostic Bank 1 (sensor dynamics)
Display

xxxx 

RPM

xxx.x °C

xx.xx

Test OFF/Test ON B1-S1 

OK/B1-S1 n.OK

Indicated

Engine 

speed (in 

steps of 

40)

Three Way 

Catalytic 

Converter (TWC) 

temperature

Sensor dynamics Bank 1 

oxygen sensor 1

Diagnostic condition and 

diagnostic result

Working 
range

0 to 6800 

RPM

-

0.00 to 1.99

-

Specifications

1800 to 

2200 

RPM

350 to 500 °C

> 0.50

B1-S1 OK.

-

-

If the specifications are not obtained, see 

OXYGEN SENSOR AGING, OXYGEN 

SENSOR AFTER THREE WAY 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

If the specifications are obtained: 

z

Press --> button.  

z

Remove engine speed adjuster VAG 1788/10 from accelerator pedal.  

z

Press buttons -0- and -6- for function "End output" and confirm entry with -Q- button.  

z

Switch off ignition. 

Continuation 

If the specifications are not obtained: 

z

Remove engine speed adjuster VAG 1788/10 from accelerator pedal.  

z

Road test vehicle to free oxygen sensor of possible contaminates and repeat test. 

Observe the valid safety precautions when carrying out a road test, see SAFETY PRECAUTIONS . 

If the specifications are again not obtained: 

z

Replace oxygen sensor before Three Way Catalytic Converter (TWC) -G39-, see item 10 .  

z

Check DTC Memory, if necessary, repair any malfunctions and then Erase DTC Memory, see DTC 
MEMORY OF MOTRONIC ENGINE CONTROL MODULE (ECM) -J220-, CHECKING AND 
ERASING
 .  

z

Read readiness code, see READINESS CODE, DISPLAYING . If DTC memory has been erased or 
Motronic Engine Control Module (ECM) -J220- was disconnected from battery positive, readiness code 
must be generated again, see READINESS CODE, GENERATING .  

Oxygen sensor aging, oxygen sensor after Three Way Catalytic Converter (TWC), checking 

Special tools, test equipment and auxiliary items 

z

VAG 1551 scan tool (or VAG 1552 mobile scan tool) with VAG 1551/3B cable  

z

VAG 1788/10 RPM adjuster 

CATALYTIC CONVERTER (TWC), 

CHECKING , continuation

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

Fig. 123: Identifying Special Tool 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Test conditions 

z

Engine Coolant Temperature (ECT) must be at least 80 °C, see display group 04, display zone 3  

Functional check 

z

Connect VAG 1551 scan tool ((VAG 1552). Start engine and select "Address word" 01 of Motronic 
Engine Control Module (ECM) -J220-. Engine must be running at idle speed. Connecting scan tool and 
selecting Motronic Engine Control Module (ECM) -J220-, see VAG 1551, CONNECTING AND 
SELECTING MOTRONIC ENGINE CONTROL MODULE (ECM) -J220-
 . 

Indicated on display 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

Fig. 124: Identifying Scan Tool Display - Checking Aging, HO2S After TWC (1 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Press buttons -0- and -4- for function "Basic Setting" and confirm entry with -Q- button. 

Indicated on display 

Fig. 125: Identifying Scan Tool Display - Checking Aging, HO2S After TWC (2 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Press buttons -0-, -4- and -3- for "Display group number 43" and confirm entry with -Q- button. 

Indicated on display (1 to 4 - Display zones)

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

 

 

 

 

 

 

 

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