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If you own a Peugeot and have encountered the fault code B173D, you are likely dealing with an issue related to your vehicle’s door mirrors. This code is specific to the Body Control Module (BCM) and relates to the electrical functioning of the mirror adjustment or folding mechanism.
Below is a detailed breakdown of what this code means, its symptoms, causes, and how to resolve it. b173d peugeot
Modern Peugeots are equipped with an automatic climate control system. When you set the HVAC to "Auto," the system monitors outside air quality. If the sensor detects high levels of pollutants (diesel fumes, CO, NOx), it automatically switches the ventilation from fresh air to recirculation mode to protect the cabin occupants. If you own a Peugeot and have encountered
The b173d code indicates that the Body Control Module (BSI) or the Climate Control Unit is not receiving a valid signal from this sensor. Modern Peugeots are equipped with an automatic climate
In very rare cases (mostly Peugeot 308 and 508 models from 2015-2017), a software glitch causes the ECU to misdiagnose a healthy glow plug. A dealer software update resolves this.