Component Description For Tire Pressure Monitor Control Unit - GF40.15-P-5124FH
Model 238
up to model year 2021
with code 475 (Tire pressure monitor (TPM))
Shown on model 238.3
Location
The tire pressure monitor control unit is located on the underfloor above the rear axle.
Tasks
The tire pressure monitoring system control unit has the following tasks:
- Reading in of signals
- Evaluation of input factors
- Transmission of information
Reading in of signals
The input factors are read in over the following connections:
- Two-way radio
- User interface CAN (CAN HMI)
Two-way radio
The tire pressure monitor control unit reads in the signals of the following components via radio:
- Left front tire pressure sensor (A69/1)
- Right front tire pressure sensor (A69/2)
- Left rear tire pressure sensor (A69/3)
- Right rear tire pressure sensor (A69/4)
User interface CAN
The tire pressure monitor control unit reads in the following signals via user interface CAN:
- from instrument cluster (A1)
- Vehicle speed signal
- Outside temperature
- Kilometer reading
Evaluation of input factors
The input factors that have been read in are evaluated by the integrated microprocessor whereupon the information is then sent.
Transmission of information
The tire pressure monitor control unit sends requests for display of messages and warnings to the instrument cluster via user interface CAN.
Structure
The central antenna is integrated in the tire pressure monitor control unit.
| Wiring diagram for tire pressure monitor control unit | PE40.15-P-2101-97DCA |