B2410

B2410

Recirculation Motor. Short to B+
Recirculation Motor. Open Circuit / Short to Ground







Fault symptoms
- The cabin mists up.
- Bad air in cabin.
- The perceived cabin temperature is too high compared to the set temperature.

Conditions
The following conditions apply:
- A short to B+ is indicated when the output for the air recirculation motor is not activated and the voltage on pin 21 exceeds 9 V.
- A short to ground and open circuit is indicated when the output for the air recirculation motor is not activated and the voltage on pin 21 is below 3 V.
- Measured every 440 ms and 5 consecutive measurements are required to set a diagnostic trouble code.
- The diagnostic trouble code is deleted after the ignition has been switched on 20 times if the malfunction conditions have not been fulfilled.
- When the diagnostic trouble code has been set the output is switched off.