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