Subaru Legacy BN/BS (2015-2019) Service Manual: Electrical specification

Subaru Legacy BN/BS (2015-2019) Service Manual / Tire pressure monitoring system (diagnostics) / Control module i o signal / Electrical specification

Terminal No.	Content	Measured value and measuring conditions	Remarks
1	—	—	—
2	—	—	—
3	—	—	—
4	Ignition power supply	10 — 13 V (when the ignition switch is ON)	—
5	GND	0 V (always)	—
6	Battery power supply	10 — 13 V (always)	Without push button start system
7	—	—	—
8	—	—	—
9	—	—	—
10	—	—	—
11	Body integrated unit communication line	—	—
12	—	—	—

Wiring diagram

Refer to “Tire Pressure Monitoring System” in the wiring diagram. Tire Pressure Monitoring System > WIRING DIAGRAM ...

Diagnostic procedure with diagnostic trouble code (dtc)

...

Other materials:

Caution
Before disconnecting connectors of sensors or units, be sure to disconnect the ground cable from battery. When replacing the electrical parts provided with memory functions that store contents specified by a customer, record the memory contents before disconnecting the battery ground cable.1. HFC-13 ...