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
Remove the underbody shields.
Remove the fasteners and the front crossmember.
Installation
NOTE:
Install and hand tighten all fasteners before tightening to specification.
Install the front crossmember and fasteners.
Torque:
30 lb.ft (40 Nm)
Install the underbody shields.
..
Removal
NOTE:
Removal steps in this procedure may contain installation details.
WARNING:
Turn the ignition OFF and wait one minute to deplete
the backup power supply. Ignition must remain OFF until repair is
complete. Failure to follow this instruction may result in serious
personal injury or death in the event of an accidental deployment.
If a SRS fault is present, con..