What does Sen flt: AZ30-BT21 ex air sen mean?

There is no contact with the exhaust air sensor (AZ30-BT21). This may be due to an open or short circuit on the sensor input, or a defective sensor.

• Open circuit or short circuit on sensor input
• Defective sensor

Click steps to track your progress.

1. 1

   Check the exhaust air sensor (AZ30-BT21) for damage.

2. 2

   Verify the sensor's connection is secure.

3. 3

   Measure the sensor's resistance.

4. 4

   Replace the sensor if it is not working correctly.