Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc c2424 transmitter 4 battery voltage low

Subaru Legacy BN/BS (2015-2019) Service Manual / Tire pressure monitoring system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc c2424 transmitter 4 battery voltage low

DTC DETECTING CONDITION:

Detected when power supply voltage failure signal is received from each transmitter.

TROUBLE SYMPTOM:

Tire pressure warning light blinks 25 times and then illuminates.

STEP	CHECK	YES	NO
1.REPRODUCTION OF FAILURE. 1) Perform the drive test. Drive the vehicle at 40 km/h (25 MPH) or faster for at least 10 minutes. 2) Read the DTC of tire pressure monitoring. Read Diagnostic Trouble Code (DTC) > OPERATION	Is DTC displayed as “Present fault”-	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C2424 TRANSMITTER 4 BATTERY VOLTAGE LOW	When DTC is displayed as “Past faults”, the system has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again. NOTE: In this case, there may be temporary poor communication due to radio wave environment inside/outside the vehicle.
2.CHECK TRANSMITTER. 1) Replace all transmitters and register their IDs. Register Transmitter (ID) > OPERATION 2) Perform the Clear Memory Mode. Clear Memory Mode 3) Perform the Inspection Mode. Inspection Mode	Is the fault eliminated-	Internal battery of the transmitter had worn out.	Replace the TPMS & keyless entry CM or TPMS CM. Tire Pressure Monitoring System

Dtc c2021 tire 1 air pressure low (normal mode)

NOTE:Refer to DTC C2024 for diagnostic procedure. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C2024 TIRE 4 AIR PRESSURE LOW (NORMAL MODE) ...

Dtc c2423 transmitter 3 battery voltage low

NOTE:Refer to DTC C2424 for diagnostic procedure. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C2424 TRANSMITTER 4 BATTERY VOLTAGE LOW ...

Other materials:

Procedure
CAUTION:Do not turn the power of the Subaru Select Monitor OFF during work, and do not disconnect the data link connector.1. Shift the select lever to “P” range.2. Apply the electronic parking brake.3. Lift up the vehicle.WARNING:Lift up the vehicle until the tire bottom is 30 cm or more ...