Subaru Legacy BN/BS (2015-2019) Service Manual: Tire pressure warning light does not come off

Subaru Legacy BN/BS (2015-2019) Service Manual / Tire pressure monitoring system (diagnostics) / Tire pressure warning light trouble indicator light illumination pattern / Tire pressure warning light does not come off

DETECTING CONDITION:

• Defective combination meter

• Tires pressure drop

• Transmitter ID not registered

TROUBLE SYMPTOM:

Tire pressure warning light remains illuminating after engine starts.

STEP	CHECK	YES	NO
1.CHECK DTC. Read the DTC of tire pressure monitoring. Read Diagnostic Trouble Code (DTC)	Is DTC displayed-	Perform the diagnosis according to DTC. List of Diagnostic Trouble Code (DTC)	Tire Pressure Warning Light / Trouble Indicator Light Illumination Pattern > TIRE PRESSURE WARNING LIGHT DOES NOT COME OFF
2.CHECK TRANSMITTER (ID). Confirm the current data display of the tire pressure monitoring. Read Current Data	Is the transmitter ID registered-	Tire Pressure Warning Light / Trouble Indicator Light Illumination Pattern > TIRE PRESSURE WARNING LIGHT DOES NOT COME OFF	Register the transmitter ID. Register Transmitter (ID) > OPERATION
3.CHECK TRANSMITTER DATA OUTPUT. 1) Start the engine. 2) Confirm the current data display «INDICATOR LAMP» of the tire pressure monitoring. Read Current Data	Is “ON” displayed-	Replace the TPMS & keyless entry CM or TPMS CM. Tire Pressure Monitoring System	Replace the combination meter. Combination Meter > REMOVAL

Inspection

(1)Ignition switch(8)Tire inflation pressure warning light (pressure condition)(15)Light OFF(2)OFF(9)Light OFF(16)Blink(3)ON(10)Light ON(17)1 second(4)Start(11)System status(18)Blinks 25 times(5)Tire ...

Tire pressure warning light does not come on

DETECTING CONDITION:Defective combination meterTROUBLE SYMPTOM:When the ignition switch is turned to ON, the tire pressure warning light does not turn on (for approx. 2 seconds).STEPCHECKYESNO1.CHECK ...

Other materials:

Electrical component location location
(1)VDC CM(6)Brake light relay(11)Steering angle sensor(2)TCM (engine type: EZ)(7)Lane departure warning OFF switch(12)EyeSight steering switch(3)Stereo camera(8)Pre-collision brake OFF switch(13)Data link connector(4)ECM(9)Body integrated unit(14)Stop light and brake switch(5)TCM (engine type: FB)(1 ...