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

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

Component Identification:

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

Task
The primary task of the TPM wheel sensors is pressure/temperature measurement. The measuring range extends from p = 0 and 5.5 bar.

The TPM wheel sensors transmit data telegrams every t = 60 s while driving. Absolute pressure, tire pressure temperature, wheel identifier and status information (manufacturer, direction of turning, operating mode etc.) 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 TPM 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 TPM wheel sensor consists of the following components:
^ Pressure sensor
^ Temperature sensor
^ High-frequency transmitter
^ Sensor battery for power supply (service life approx. 10 years)