GF40.15-P-5126RC Wheel Sensor, Component Description

GF40.15-P-5126RC Wheel sensor, component description
- with CODE (470) Tire pressure monitor (base) Fa. Schrader

Component Identification:

Location
The wheel sensors are fastened securely inside the respective rim.

Task
The primary task of the wheel sensors is pressure/temperature measurement. The measuring range extends from p = 0 and 6.375 bar.

The wheel sensors transmit six data telegrams every t = 60 s while driving. Absolute pressure, tire pressure temperature, wheel identifier and status information (manufacturer, direction of turning, operating mode) are transmitted in these data messages.

The TPM [RDK] control unit (N88) receives the data telegrams and assigns (after a learning phase) the wheel identifier to the wheels fitted to the vehicle.

As long as the TPM [RDK] control unit does not recognize the vehicle's own wheel identifier during initial commissioning, no fault message is displayed. After the replacement of a TPM wheel sensor the respective new wheel sensor is taught in and monitored with a new wheel identifier after traveling for approx. t = 10 min.

Design
Each TPM wheel sensor is connected to the filling valve via a mounting bolt and forms an assembly unit with it. The assembly unit is attached to the rim flange using a counternut.

The complete assembly unit has to be changed.

A wheel sensor consists of the following components:
- Pressure sensor
- Temperature sensor
- High-frequency transmitter
- Low frequency receiver
- direction recognition
- Sensor battery for power supply (service life approx. 10 years)