Symptom Chart
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information
NOTE:
For vehicles with different front and rear tire pressures, the tire pressures must be adjusted and the TPMS sensors must be trained following a tire rotation. Failure to train the sensors results in a false low tire pressure event, causing the TPMS warning indicator to illuminate.
Symptom Chart
| Condition | Possible Sources | Action |
|---|---|---|
| A module does not respond to the scan tool | Fuse Wiring, terminals or connectors Communication network concern BCM TPM module |
REFER to Diagnosis and Testing in Module Communications Network |
| The TPMS warning indicator is on continuously and the message center displays LOW TIRE PRESSURE | Refer to the Pinpoint Test | GO to Pinpoint Test A . |
| BCM will not enter sensor training mode when using the TPMS sensor training procedure | Refer to the Pinpoint Test | GO to Pinpoint Test B . |
| TPMS warning indicator illuminates with DTCs present | Refer to the Pinpoint Test | GO to Pinpoint Test C . |
| TPMS warning indicator illuminates with no DTCs present | Communication network concern IPC |
DIAGNOSE the TPMS warning indicator is always on, REFER to Diagnosis and Testing in Instrumentation, Message Center, and Warning Chimes . |
| One or more TPMS sensors will not train and DTCs are present | Wiring, terminals or connectors TPMS sensor(s) Communication network concern TPM module BCM |
RETRIEVE and RECORD DTCs. GO to the DTC Chart: Tire Pressure Monitor (TPM) Module . |
| One or more sensors will not train and no DTCs are present | Refer to the Pinpoint Test | GO to Pinpoint Test D . |