Passat Syncro Wagon V6-2.8L (ATQ) (2000)
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: Powertrain Management/Computers and Control
Systems/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:
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Perform a road test to free Heated Oxygen Sensor (HO2S) of any possible residue, and repeat test.
Observe safety precautions which apply to road tests.
If specified values are not obtained again:
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Replace Heated Oxygen Sensor (HO2S) (G39), bank 1 before catalytic converter item 27.
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Check DTC memory, repair any malfunctions and then erase DTC memory. Refer to Displaying and Reading Trouble Codes/With Manufacturer
Scan Tool/DTC Memory Checking and Erasing See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading
and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes/With Manufacturer's Scan Tool/DTC Memory Checking and Erasing
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Read readiness code. If DTC memory was erased or Engine Control Module (ECM) was disconnected from B+ supply, readiness code must be
re-generated. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness
Codes
Oxygen Sensor Aging, Bank 2, Sensor 1, Checking
Heated Oxygen Sensor (HO2S) aging, bank 2 sensor 1, checking
Special tools and equipment