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B2410

Read the instructions below then start the fault diagnostic procedure.

Symptom: The cabin mists up. Bad air in cabin. The perceived cabin temperature is too high compared to the set temperature.

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.