Ford Fiesta: Tire Pressure Monitoring System (TPMS) / Tire Pressure Monitoring System (TPMS) - Overview. Description and Operation
Overview
The BCM
monitors the tire pressure in the 4 road tires with tire pressure
sensors that communicate the tire pressure via radio signals to the BCM .
The tire pressure sensors are battery operated and mounted to the valve
stems. All of the controlling software for the TPMS is contained in the
BCM . 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
MS-CAN
2
IPC
3
BCM
4
Message center display
5
TPMS warning indicator
6
LH front TPMS sensor
7
RH front TPMS sensor
8
LH rear TPMS sensor
9
RH rear TPMS sensor
..
Other information:
Special Tool(s) /
General Equipment
Transmission Jack
Vehicle/Axle Stands
Removal
NOTICE:
Suspension fasteners are critical parts that affect
performance of vital components and systems. Failure of these fasteners
may result in major service expense. Use the same or equivalent parts if
replacement is necessary. Do not use a replacement part of lesser
quali..
Removal
Non-functional lock cylinder
NOTE:
For non-functional ignition lock cylinders, replace the ingition lock cylinder housing.
Replace the ingition lock cylinder housing.
Refer to: Ignition Lock Cylinder Housing (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
Functional lock cylinder
Remove the Passive Ant..