Symptom Chart

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For vehicles with different front and rear tire pressures, the tire pressures must be adjusted and the tire pressure sensors must be trained following a tire rotation. Failure to train the sensors results in a false low tire pressure event, causing the Tire Pressure Monitoring System (TPMS) indicator to illuminate.
For vehicles with the same tire pressure for front and rear tires, training the sensors is not necessary after a tire rotation.
Failure of a TPMS component may not cause the message center to display a fault message or a DTC to be stored. The Symptom Chart is a starting point to begin diagnosis of these concerns.

SYMPTOM CHART

Condition	Possible Sources	Action
Tire Pressure Monitoring System (TPMS) indicator ON continuously and message center displays LOW TIRE PRESSURE	Spare tire currently in use Air pressure not set to specifications listed on the Vehicle Certification (VC) label TPMS sensors not trained following tire rotation TPMS sensor(s)	GO to Pinpoint Test D .
Body Control Module (BCM) cannot enter sensor training mode when using the TPMS sensor training procedure	Stoplamp switch concern Ignition switch concern BCM	GO to Pinpoint Test E .
TPMS indicator is on with DTCs present	Not all TPMS sensors are installed TPMS sensor not trained TPMS sensor(s) Intermittent TPMS operation due to Radio Frequency Interference (RFI) BCM	GO to Pinpoint Test F .
TPMS indicator is on with no DTCs present	Communication network concern Instrument Panel Cluster (IPC)	REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES to diagnose the TPMS indicator is always on.
One or more TPMS sensors do not train and DTCs are present	TPMS sensor(s) Vehicle communication issue BCM	FOLLOW the diagnostics for the DTC(s) retrieved. REFER to Tire Pressure Monitor (TPM) Module DTC Chart .
One or more TPMS sensors do not train and no DTCs are present	TPMS sensor(s) Attempting to install a banded TPMS sensor that is not compatible with a valve mounted sensor	TRAIN all 4 tire pressure sensors. REFER to Tire Pressure Monitoring System (TPMS) Sensor Training . If a sensor does not respond to the Tire Pressure Monitor Activation Tool, MOVE the vehicle to rotate the wheels at least one-fourth of a turn and ATTEMPT to activate the same sensor again. If the sensor still does not respond, ATTEMPT to activate the same sensor again using the customer activation tool (if available). If the sensor still fails to train, ATTEMPT to train the sensor with the vehicle doors open. If the sensor(s) fails to train a second time, INSTALL a new sensor(s). REFER to Tire Pressure Monitoring System (TPMS) Sensor . TEST the system for normal operation.