How does the passenger presence system work on a car?
PPS Operation. The Passenger Presence System is used to monitor the type of occupant that is sitting in the front passenger seat and communicates the status to the inflatable restraint sensing and diagnostic module.
Can a seat cushion be replaced on a passenger presence system?
TIP: Replace the Passenger Presence System as a complete assembly. Do not mix any of the old parts with the new parts. Recently, parts returned under warranty show that the sensor is being replaced while the seat cushion is not. If only the new sensor is installed, the repair is incomplete and the PPS may not operate properly.
Where is the weight sensor on a car?
Passenger Occupancy Sensor, also known as Weight Sensor, Seat Mat, Passenger Occupancy Mat, is installed under the passenger seat’s seat cushion. Its purpose is to send a signal to the airbag module if an adult is sitting on the passenger seat.
Is there a sensor in the front seat?
A sensor mounted in the front passenger seat senses when someone is sitting in the passenger seat. It is one of the most common problems with the airbag systems in most cars, including Mercedes, BMW, Hyundai, Kia, Honda, Audi, Toyota, Chevy, Subaru, Nissan, VW, etc.
PPS Operation. The Passenger Presence System is used to monitor the type of occupant that is sitting in the front passenger seat and communicates the status to the inflatable restraint sensing and diagnostic module.
TIP: Replace the Passenger Presence System as a complete assembly. Do not mix any of the old parts with the new parts. Recently, parts returned under warranty show that the sensor is being replaced while the seat cushion is not. If only the new sensor is installed, the repair is incomplete and the PPS may not operate properly.
How does a seat occupancy sensor work on a car?
The emulator generates a signal to make the airbag control module think that a person is sitting on the front passenger seat at all times. Meaning the front passenger seat appears as it is “allways ocupited” even if there is no one sitting on that seat. Therefore the airbags will deploy even if a child seat is present on the front seat.
Where is the child seat recognition sensor located?
On the passenger seat of Mercedes-Benz cars, a weight sensor is installed known as a child seat recognition sensor. This sensor is found not only on Mercedes-Benz E-Class W211 or S-Class W220 but also on other models such as CLS, CLK-Class, C-Class, ML-Class.