Why is there a plastic part exposed on the bottom of the car
#4
That's what I saw in my service manual - and yes - it was shown as under the vehicle, drivers side. Toward the rear. I was wondering how the system recognizes the different wheel sensors - must be some sort of magic.
From the manual:
Last item in that list..
As to how they learn:
There'ya go. BTW - some info on the year/model of your P!G is useful when asking questions. Intelligent questions tend to get intelligent answers. Other ones are ignored.
From the manual:
Originally Posted by Manual
The 3rd generation TPM system consists of:
4 wheel electronics units screwed onto the wheels
4 TPM valves and
1 TPM control unit (KSG) with integrated central antenna (installed on the rear axle)
4 wheel electronics units screwed onto the wheels
4 TPM valves and
1 TPM control unit (KSG) with integrated central antenna (installed on the rear axle)
As to how they learn:
Originally Posted by manual
The 3rd generation TPM system operates on the principle of unidirectional communication between the wheel electronics and control unit. This means that the wheel electronics can communicate with the control unit, but the control unit cannot communicate with the wheel electronics.
The wheel electronics units send the currently measured tyre pressure, the direction of rotation, the temperature of the air in the tyre and the remaining service life (of the battery) as well as a specific ID from the wheel that is currently turning at specified intervals.
The wheel position is learned automatically from the side and axle specifications. The direction of rotation of a wheel is detected by acceleration sensors in the wheel electronics (left/right detection). Axle sensing (front axle/rear axle detection) is performed based on differentiated sound levels between the front and rear axle, where the central antenna is fitted close to one axle (high level). The levels received from the other axle are correspondingly low.
The wheel electronics units send the currently measured tyre pressure, the direction of rotation, the temperature of the air in the tyre and the remaining service life (of the battery) as well as a specific ID from the wheel that is currently turning at specified intervals.
The wheel position is learned automatically from the side and axle specifications. The direction of rotation of a wheel is detected by acceleration sensors in the wheel electronics (left/right detection). Axle sensing (front axle/rear axle detection) is performed based on differentiated sound levels between the front and rear axle, where the central antenna is fitted close to one axle (high level). The levels received from the other axle are correspondingly low.
Last edited by deilenberger; 01-03-2017 at 08:15 PM.