Golf L4-2.0L (ABA) (1996)
Oxygen Sensor: Testing and Inspection
Oxygen Sensor Heating Test: Before Converter
Special Tools, Testers And Auxiliary Items
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VAG 1551/1552 scan tool with VAG 1551/3 adapter cable
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VAG 1598/18 test box
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Multimeter (Fluke 83 or equivalent)
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Connector test kit VW 1594
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Wiring diagram
Test Conditions
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Fuse 180K
Test Sequence
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Engine running at idle
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Connect VAG 1551/1552 scan tool and select "Engine Electronics" address word 01.
Indicated on display
Rapid data transfer HELP
Select function XX
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Press buttons -0- and -8- to select "Read Measuring Value Block" function 08 and press -Q- button to confirm input.
Indicated on display
Read Measuring Value Block HELP
Input display group number XX
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Press buttons -1-, -2- and -0- to input display group 120 and press -Q- button to confirm input.
Indicated on display (1-4 = Display fields)
Read Measuring Value Block 120-->
1 2 3 4
Display Group 120: Oxygen Sensor Heating
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Check the resistance value for oxygen sensor heating before three way catalytic converter (display field 3).
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Press -> button.
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Press buttons -0- and -6- to select "End Output" function 06 and press -Q- button to confirm input.
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Switch ignition off.