24-108
Test requirements:
Coolant Temperature at least 80 C.
Fuse for oxygen sensor heating OK
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
Test sequence
Note:
Coolant reservoir screws must be removed and coolant reservoir must be
placed to side in order to access the harness connector. The coolant
hoses can remain connected. - Disconnect 4-pin harness connector -1- (brown) to Oxygen Sensor
(O2S) behind Three Way Catalytic Converter (TWC) -G130-.
If specified value is not obtained: - Connect multimeter between terminal 1 and 2 for resistance
measurement.
Specified value at room temperature: 6.4 to 47.5
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ge 40 of 46 Ox
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24-112
Oxygen sensor, removing and installing
Special tools and equipment
Procedure
3337 wrench, 7-piece set Locking compound G 052 112 A3
Note:
Coolant reservoir screws must be removed and coolant reservoir must be
placed to side in order to access harness connectors. The coolant hoses
can remain connected. - Disconnect oxygen sensor harness connector and lay to side.
1 - (brown) for Oxygen Sensor (O2S) behind Three Way Catalytic
Converter (TWC) -G130-
2 - (black) for Heated Oxygen Sensor (HO2S) -G39- before catalytic
converter
- Unscrew oxygen sensor using special tool 3337.
Pa
ge 45 of 46 Ox
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en sensor control, checkin
g
11/22/2002 htt
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play?action=Goto&t
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pair&id=AUDI.B5.FU07.24.2
