Passat Syncro Wagon V6-2.8L (ATQ) (2000)
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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 the 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: 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 0, 3 and 5 for the function "display group number 35", and then press Q to exit from input mode.
Indicated on display (1 - 4 = display fields)
System In Basic Setting 35
->
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 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 RPM at 1000 - 2400 until in display field 4 expected value "B2-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) 2 -G108-, bank 2 before catalytic converter item 18.