Ford Fusion: Tire Pressure Monitoring System (TPMS) / Tire Pressure Monitoring System (TPMS) - Overview. Description and Operation
Overview
The BCM uses tire pressure sensors to monitor tire pressure. The sensors use radio signals to transmit the tire pressure to the RTM. The RTM sends the information to the BCM over a LIN. The tire pressure sensors are battery operated and mounted to the valve stems. The IPC illuminates the TPMS
warning indicator and the message center displays a message when a
fault is present or when the tire pressure falls below the low pressure
limit.
System Operation
System Diagram
Item
Description
1
IPC
2
BCM
3
IPC message center display
4
TPMS warning indicator
5
LH front TPMS sensor
6
RH front TPMS sensor
7
LH rear TPMS sensor
8
RH rear TPMS sensor
9
RTM
10
GWM
Network Message Chart
RTM
TPMS Network Input M..
Other information:
Removal
Vehicles with push button start
NOTE:
LH side shown, RH side similar.
Remove the front door trim panel.
Refer to: Front Door Trim Panel (501-05 Interior Trim and Ornamentation, Removal and Installation).
Remove the front door watershield.
All vehicles
Remove the grommet.
Remove the door lock..
General Specifications
Item
Specification
Plug Weld hole
8 mm (0.315 in)
Weld Wire ER70S-3
0.9 mm (0.0354 in) - 1.1 mm (0.0433 in)
Weld Wire ER70S-6
0.9 mm (0.0354 in) - 1.1 mm (0.0433 in)
Weld Nugget Chart
Test Thickness of Metal
Nugget S..