B2492
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Experienced temperature in cabin is too high or low when compared to set temperature.
Stepping motor air-mixing damper. Open circuit
Stepping motor air-mixing damper. Short circuit
Fault symptom
Experienced temperature in cabin is too high or low when compared to set temperature.
Conditions
The following conditions apply:
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When the voltage exceeds a certain value on any of the stepping motor outputs, a diagnostic trouble code for short-circuiting is generated.
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If any of the stepping motor outputs sense a control voltage lower than 55 mA, a diagnostic trouble code for open circuit is generated.
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Continuous monitoring and during calibration.
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