Jetta L4-1.9L DSL Turbo (BRM) (2006)
Oxygen Sensor: Testing and Inspection
Oxygen Sensor (O2S) Heater Z19, Checking
Oxygen Sensor (O2S) Heater Z19 , Checking
NOTE: When servicing terminals in harness connector of Heated Oxygen Sensor (HO2S) G39 , use only gold-plated terminals.
Special tools, testers and auxiliary items required
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Hand multimeter V.A.G 1526 or Multimeter V.A.G 1715
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Test adapter kit V.A.G 1594
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Wiring diagram
Test conditions:
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The respective fuse of Heated Oxygen Sensor (HO2S) G39 must be OK.
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Battery voltage at least 11.5 V.
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All electrical consumers (e.g. lights and rear window defroster) switched off.
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Vehicles with automatic transmission: Selector lever in position "P" or "N".
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Air conditioning system switched off.
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Ground (GND) connection between engine and body OK.
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Ignition switched off.
Work procedure:
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Separate the 6-pin connector - arrow - to Heated Oxygen Sensor (HO2S) G39.
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Check resistance for Oxygen Sensor (O2S) Heater Z19 at connector to Heated Oxygen Sensor (HO2S) G39 terminal 3 + 4.