Electrical Specification

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Content	Measuring condition	Standard
1 (+B) ↔ Chassis ground	Battery power supply	Always	10 - 14 V
2 (GND) ↔ Chassis ground	GND	Always	Less than 1 Ω
3 (IGN) ↔ Chassis ground	Ignition power supply	IG OFF → ON	0 V → 10 - 14 V
4 (STR-) ↔ Chassis ground	Steering switch communication line (-)	Cannot be measured	-
5 (CAN-) ↔ Chassis ground	CAN communication line (-)	Cannot be measured	-
6 (CAN+) ↔ Chassis ground	CAN communication line (+)	Cannot be measured	-
7	-	-	-
8	-	-	-
9 (UART) ↔ Chassis ground	UART (meter communication line)	Cannot be measured	-
10 ↔ Chassis ground	Passenger's airbag ON	Passenger's airbag ON indicator (when illuminating)	Less than 1 V
11 ↔ Chassis ground	Passenger's airbag OFF	Passenger's airbag OFF indicator (when illuminating)	Less than 1 V
12 (STR+) ↔ Chassis ground	Steering switch communication line (+)	Cannot be measured	-