Component Description For Tire Pressure Monitor Control Unit - GF40.15-P-5124GN
MODEL 166
as of model year 2016
with CODE 475 (Tire pressure monitoring system)
MODEL 292
with CODE 475 (Tire pressure monitoring system)
Shown on model 292
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
- Transfer of information
Reading in of signals
The input factors are read in via the following connections:
- Two-way radio
- Chassis CAN 2 (CAN E2)
Two-way radio
The signals from the following components are read in via radio connections:
- 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)
Chassis CAN 2
The following signals are read in over chassis CAN 2:
- 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.
Transfer of information
The tire pressure monitor control unit sends information over the chassis CAN 2 to the instrument cluster, this information is then shown as menu displays and as warning messages.
Body
The central antenna is integrated in the tire pressure monitor control unit.
| Designation | Unit | Values | Tolerance range | Remarks |
|---|---|---|---|---|
| Tire pressure monitor control unit | ||||
| Voltage supply | V | 12...14 | ||
| Voltage limits | V | 9, 0 | ±0, 5 | Lower limit value |
| 17, 0 | ±0, 5 | Upper limit value | ||
| Power consumption | mA | 50 | Standby | |
| 50 | Action | |||
| No data | Other actions | |||
| μA | 60 | Typical quiescent current | ||
| 100 | Maximum quiescent current | |||
| Reverse polarity protection | - | - | - | Yes |
| Additional specific parameters | - | - | - | No |
| Special features | - | - | - | None |
| Flash capability/coding capability | - | - | - | Yes/yes |
| Wiring diagram for tire pressure monitor control unit | PE40.15-P-2101-97NBA |