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:
Overview
The generator is driven by the FEAD belt. When the engine is started, the generator begins to generate AC voltage which is internally converted to DC voltage. The DC
voltage level is controlled by the voltage regulator (located on the
rear of the generator) and is supplied to the battery. The PCM
works with the generator internal voltage regulator over two
communication circuits, GEN..
DTC Chart
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
BCM
DTC Chart
DTC
Description
Actions
B1323:11
Horn Switch: Circuit Short To Ground
GO to Pinpoint..