A/F Sensor Heater Relay: Inspection: Inspection

INSPECT AIR FUEL RATIO SENSOR RELAY

Using an ohmmeter, measure the resistance according to the value(s) in the table below.

Fig 1: Identifying Relay Terminals

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Standard resistance

Tester Connection	Specified Condition
3 - 5	10 kΩ or higher
3 - 5	Below 1 Ω (Apply battery voltage between terminals 1 and 2)

If the result is not as specified, replace the relay.