Oxygen Sensor Heater
O2 Heater Terminals:
1. Disconnect the O2 sensor connector.
2. Using an ohm meter, check the resistance between terminals a and c.
If the resistance is not between 3 and 1000 ohms, replace the O2 sensor.
1. Disconnect the O2 sensor connector.
2. Using an ohm meter, check the resistance between terminals a and c.
If the resistance is not between 3 and 1000 ohms, replace the O2 sensor.