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Home >> Audi >> 1987 >> 5000S Sedan L5-2309cc 2.3L SOHC (NF) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Oxygen Sensor >> Testing and Inspection >> Oxygen Sensor Heating
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Oxygen Sensor Heating





- disconnect oxygen sensor heating element connector (2) from harness connector (1)





Harness Connector

- connect multimeter US 1119 between harness connector terminals 1 and 2
- switch ignition ON
- specification: approximately 12 volts

If specification is NOT obtained
- repair break in wiring using wiring diagram

If specification IS obtained





Oxygen Sensor Heating Element Connector

- connect multimeter US 1119 between terminals 1 and 2 of oxygen sensor heating element connector
^ specification: 3 to 15 ohms

If specification is NOT obtained
- replace oxygen sensor
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