What is the fault code for an open circuit in the Audi rear glass breakage sensor?

1 Answers
VonVincent
07/30/25 8:29am
Audi rear glass breakage sensor open circuit, the fault code is 01403. Fault inspection method: Using a diagnostic tool, fault code 01403 was detected in module 46: Rear window glass breakage sensor G304 open circuit. Then, checking the alarm source data block in module 46, it was found that the previous, second last, third last, and fourth last alarm sources were all rear window breakage. Based on the above diagnosis, it was preliminarily confirmed as a fault with the glass breakage sensor or related wiring. After removing the rear trim panel, it was found that a connector of the glass breakage sensor was not securely plugged in, causing a loose connection and false alarms. Function of the sensor: Automotive sensors are primarily responsible for information collection and transmission. They are used to enhance the safety, reliability, and comfort of the vehicle.
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