A6 — Exhaust gas NTC on the combustion chamber has an open circuit or short circuit

What does A6 mean?

The exhaust gas NTC sensor located specifically on the combustion chamber has an open circuit (no signal) or a short circuit (incorrect signal). This sensor monitors safety and combustion efficiency.

• The exhaust gas NTC sensor at the combustion chamber is faulty or has failed.
• The connection cable to this sensor is damaged or disconnected.
• Loose or corroded connections at the sensor or circuit board.

Click steps to track your progress.

1. 1

   Check the exhaust gas NTC sensor at the combustion chamber and its connection cable for any damage or loose connections.

2. 2

   Ensure all cable connections are secure and properly seated.

3. 3

   If damage or fault is identified, replace the sensor and/or its connection cable.