acura Workshop Repair Guides

Acura (Honda) Workshop Service and Repair Manuals

Sensors and Switches - Computers and Control Systems > < Oxygen Sensor Relay|Locations|Page 4904
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Oxygen Sensor Relay: Testing and Inspection

Power Relay Test

Normally-open type, A:

Check for continuity between the terminals.

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There should be continuity between the No.1 and No.2 terminals when power and ground are connected to the No.3 and No.4 terminals.

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There should be no continuity between the No.1 and No.2 terminals when power is disconnected.

Air Fuel Ratio Sensor Relay

Sensors and Switches - Computers and Control Systems > < Oxygen Sensor Relay|Locations|Page 4904