LF Sensor Battery Low

Monitored & Set Condition

1. When Monitored: Key ON.
2. Set Condition: When the EVIC detects a low battery condition from the LF Sensor/Transmitter.

Possible Causes:

• EVIC Internal Fault
• Sensor/Transmitter Internal Fault

Testing

1. Retrain the EVIC with the scan tool, record and erase DTC's. Drive the vehicle for 10 minutes at 20 MPH (32 KM/H). With the scan tool, read DTC's. If the scan tool displays a sensor failure or sensor low battery message, replace the indicated Tire Pressure Sensor/Transmitter. See TIRE PRESSURE MONITOR SYSTEMS - 300M article. If no, go to next step.
2. Turn ignition on. Observe the EVIC display. If the EVIC displays SERVICE TIRE PRESS. SYSTEM, replace the EVIC. See TIRE PRESSURE MONITOR SYSTEMS - 300M article. If no, test is complete.