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Heated Oxygen Sensor Before Catalytic Converter, Checking: Notes

WARNING: This page is about a different car, the 2014 Volkswagen Passat, 2013 Volkswagen Passat, and 2012 Volkswagen Passat. However, it is still accessible from the selected car via links, so may be relevant.

Observe all safety precautions: SAFETY PRECAUTIONS 

View clean working conditions: CLEAN WORKING CONDITIONS 

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

NOTE:

When servicing terminals in harness connector of Heated Oxygen Sensor (HO2S) -G39- / Oxygen Sensor Heater -Z19-, use only gold-plated terminals.

Special tools and workshop equipment required 

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