Pinpoint Test C : B1251:00: Notes
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
Normal Operation and Fault Conditions
REFER to: Tire Pressure Monitoring System (TPMS) - System Operation and Component Description .
When one or more of the TPMS sensors have a low battery, the TPMS warning indicator flashes for 70 seconds and then remains on continuously when the ignition is turned to the ON position, and the message center displays TIRE PRESSURE SENSOR FAULT.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1251:00 | Tire Pressure Sensor Low Battery: No Sub Type Information | Sets in continuous memory when attempting to train a TPMS sensor with a low battery. |
Possible Sources
- RFI
- One or more TPMS sensors not trained
- TPMS sensor
Visual Inspection and Diagnostic Pre-checks
- Inspect for Non-Original Equipment Manufacturer (OEM) wheels or run-flat tires.
- Verify horn operation.