Oxygen Sensor Relay: Testing and Inspection

INSPECTION

1. REMOVE A/F SENSOR HEATER RELAY




2. INSPECT A/F SENSOR HEATER RELAY







a. Using an ohmmeter, check for continuity between each terminal
b. Using an ohmmeter, check for continuity between terminals 3 and 5 when the battery voltage is applied across terminals 1 and 2.

Specified condition: Continuity

3. INSTALL A/F SENSOR HEATER RELAY