Passat GLX Wagon V6 V6-2.8L (ATQ) (2001)
Oxygen Sensor: Testing and Inspection
Oxygen Sensor Aging, Bank 1, Sensor 1, Checking
Heated Oxygen Sensor (HO2S) aging, bank 1 sensor 1, checking
Special tools and equipment
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VAG 1788/10 RPM adjuster
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V.A.G 1551 Scan Tool (or VAG 1552) with VAG 1551/3 cable
Test condition
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Coolant temperature must be at least 85°C, See display group 04, display field 3
Function test
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Connect V.A.G 1551 scan tool (VAG 1552). Start engine and select Engine Control Module (ECM) using address word 01. Refer to Scan Tool
Testing/Scan Tool Connecting and Initial Checks/Connecting V.A.G 1551 Scan Tool See: Testing and Inspection/Reading and Clearing
Diagnostic Trouble Codes/Scan Tool Connecting/With Manufacturer's Scan Tool/Connecting VAG 1551 Scan Tool
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -4- to select "Basic Setting" function 04. Press -Q- button to confirm input.
Indicated on display
Basic Setting
Input display group number XXX
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Press buttons -0-, -3- and -4- to select "Display group number 34". Press -Q- button to confirm input.
Indicated on display (1 - 4 = display fields)
System in Basic Setting 34
->
1
2
3
4
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Use VAG 1788/10 RPM adjuster to adjust engine RPM to 1000-2400 RPM:
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Hold RPM until the catalytic converter temperature in display field 2 over 350°C climbs.
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Check specified values in display fields 1 - 4.
If diagnostic is initiated by the Engine Control Module (ECM), the indication in display field 4 will jump from "Test OFF" to "Test ON".
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Continue to hold the RPM at 1000 - 2400 until in display field 4 expected value "B1-S1 OK" is indicated.
If specified values are not obtained: