Expedition 4WD V8-5.4L VIN 5 (2006)
Low Tire Pressure Indicator: Testing and Inspection
TPM's Indicator and Vehicle Message Center Messages
The TPM's indicator and vehicle message center (if equipped) sometimes displays faults that cannot be resolved by the customer. Treat these messages
as TPM's faults that must be serviced. GO to Symptom Chart for the TPM's indicator operation and message center messages. See: Tire Monitoring
System/Testing and Inspection/Symptom Related Diagnostic Procedures
CAUTION: Place the air chuck straight on the valve stem to inflate the tire. Do not cock the air chuck during the inflation cycle. Doing so can
damage the valve stem and cause air leaks.
CAUTION: Ford recommends using a round head air chuck on tire pressure sensors; it is not recommended to use air chucks with long shanks.
Doing so can cause tire pressure sensor valve stem damage and loss of tire pressure.
TPM's Indicator Illuminates Continuously
The TPM's indicator remains on continuously for the following condition:
1. NOTE: If the spare tire is in use, the damaged road tire must be repaired and installed on the vehicle to restore complete TPM's functionality
before carrying out any diagnosis.
Low Tire Pressure - The TPM's indicator is illuminated solid and the message center displays LOW TIRE PRESSURE (if equipped). This is displayed
when any of the tire pressures are low. Tire pressure must be adjusted to the recommended cold placard pressure. Adjust the air pressure in tires.
Refer to Information BUS for diagnosis of the CAN bus.
The TPM's indicator flashes for 20 seconds after prove-out and for the following 3 reasons:
1
No communication with the TPM's Module (integral to VSM) - The TPM's indicator is illuminated when the instrument cluster (IC) has
received no signals from the VSM for more than 5 seconds. If equipped, the message center displays TIRE PRESSURE MONITOR FAULT.
GO to Symptom Chart. See: Tire Monitoring System/Testing and Inspection/Symptom Related Diagnostic Procedures
2 Tire Pressure Sensor Fault - If equipped, the message center will display TIRE PRESSURE SENSOR FAULT when a tire pressure sensor is
malfunctioning. GO to Symptom Chart. See: Tire Monitoring System/Testing and Inspection/Symptom Related Diagnostic Procedures
3 Tire Pressure Monitor Fault - If equipped, the message center will display TIRE PRESSURE MONITOR FAULT when the tire pressure
monitoring system is malfunctioning. GO to Symptom Chart. See: Tire Monitoring System/Testing and Inspection/Symptom Related
Diagnostic Procedures
