5000S Quattro Sedan L5-2309cc 2.3L SOHC (NF) (1988)
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Oxygen Sensor: Testing and Inspection
Oxygen Sensor Heating
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disconnect oxygen sensor heating element connector (2) from harness connector (1)
Harness Connector
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connect multimeter US 1119 between harness connector terminals 1 and 2
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switch ignition ON
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specification: approximately 12 volts
If specification is NOT obtained
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repair break in wiring using wiring diagram
If specification IS obtained
Oxygen Sensor Heating Element Connector
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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
