Jetta V6-2.8L (BDF) (2002)
Test sequence
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Connect VAG 1551 Scan tool (or VAG 1552) and select engine electronics control module with the "Address word" 01. When doing this the
engine must be running at idle speed: ((VAG 1551 and Motronic Engine Control Module (ECM) -J220-, connecting and selecting).
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 -8- for function "Read measured value (data) block" and confirm entry with -Q- button.
Indicated on display:
Read measured value block
Input display group number XXX
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Press buttons -0-, -4- and -1- for "Display group number 41" and confirm entry with -Q- button.
Indicated on display: (1 to 4 = display zones)
Read measured value block 41
->
1
2
3
4
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Check the status of the Oxygen Sensor (O2S) heating in display zone 4: Display: Htg.aC.ON / Htg.aC.OFF (alternating)
NOTE: The Oxygen Sensor (O2S) heating may be switched on or off depending on the operating conditions of the engine, therefore the display in
display zone 4 may show "Htg.aC.ON" or alternating from "Htg.aC.ON" to "Htg.aC.OFF".
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Press the -> button.
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Press buttons -0- and -6- for function "End output" and confirm entry with the -Q- button.
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Switch off ignition.
If the display does not indicate as described:
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Remove protective cover -arrows-and disconnect 4-pin connector (black) -1- to Oxygen Sensor (O2S) Behind Three Way Catalytic Converter
(TWC) -G130-.
Checking resistance
If the specification is not obtained:
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Check sensor heater wire resistance at connector terminals 1 and 2 to Oxygen Sensor (O2S).
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Specification: 6,4 to 47,5 ohms(at room temperature).