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H15: Check For O2 Sensor Continuity









With EM012 and EM024 disconnected, measure the resistance between EM012/016 and EM024/002.

- Is the resistance < 0.5 ohms?
Yes
GO to H16 H16: O2 Sensor Screen Ground Continuity
No
Inspect harness/connectors EM012, and EM024 for corrosion damaged/pushed back pins.
Repair as required and reconnect plug(s).
GO to H21 H21: End