Corrado V6-2792cc 2.8L DOHC (1992)
Oxygen Sensor Relay: Testing and Inspection
Electrical Checks at relay socket terminals
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Terminal-2, Battery voltage from fuse S-18
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Terminal-6, Battery voltage from ECM Power supply relay
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Terminal-4, Ground signal from ECM Terminal-28
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Terminal-8, Power output to Heated Oxygen Sensor connector Terminal-1
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Use wiring diagram to repair as necessary.