Electrical Specification

Fig 1: Identifying Combination Meter Connector Terminals

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Contents
1	Immobilizer/security indicator light
2	Charge warning light
3	Oil pressure warning light
4	RH turn indicator
6	LH turn indicator
8	Auto headlight beam leveler warning light
15	Driver's seat belt switch
16	Passenger's seat belt switch
17	Rear seat belt (left)
18	Rear seat belt (center)
19	Rear seat belt (right)
20	Ignition power supply
23	Brake fluid level switch
25	Fuel level sensor
27	Ambient sensor
28	UART (MFD)
31	SI-DRIVE
32	CAN communication line (-)
33	CAN communication line (+)
36	Ambient sensor GND
37	Fuel level sensor GND
38	GND
39	Backup ignition power supply
40	Battery power supply

Terminal No.	Item	Measuring condition	Standard
1 ←→ Chassis ground	Voltage	Security/immobilizer indicator light off → on	0 V → 10 - 14 V
2 ←→ Chassis ground	Voltage	Charge warning light off → on	0 V → 10 - 14 V
3 ←→ Chassis ground	Voltage	Oil pressure warning light off → on	0 V → 10 - 14 V
4 ←→ Chassis ground	Voltage	RH turn indicator off → on	0 V → 10 - 14 V
6 ←→ Chassis ground	Voltage	LH turn indicator off → on	0 V → 10 - 14 V
8 ←→ Chassis ground	Voltage	Auto headlight beam leveler warning light off → on	0 V → 10 - 14 V
15 ←→ Chassis ground	Resistance	Driver's seat belt switch ON	Less than 1 Ω
16	-	Airbag CM	-
20 ←→ Chassis ground	Voltage	IG OFF → ON	0 V → 10 - 14 V
21 ←→ Chassis ground	-	Washer fluid level sensor	-
23 ←→ Chassis ground	-	Brake fluid level switch	-
25 ←→ 37	Resistance	Fuel level sensor	10 - 600 Ω
27 ←→ 36	Resistance	Ambient sensor	1 - 35 kΩ
28 (UART) ←→ Chassis ground	-	Cannot be measured	-
32 (CAN-) ←→ Chassis ground	-	Cannot be measured	-
33 (CAN+) ←→ Chassis ground	-	Cannot be measured	-
34 ←→ Chassis ground	Resistance	Always	Less than 1 Ω
35 ←→ Chassis ground	Resistance	Always	Less than 1 Ω
36 ←→ Chassis ground	Resistance	Always	Less than 1 Ω
37 ←→ Chassis ground	Resistance	Always	Less than 1 Ω
38 ←→ Chassis ground	Resistance	Always	Less than 1 Ω
39 ←→ Chassis ground	Resistance	Always	Less than 1 Ω
40 ←→ Chassis ground	Voltage	Always	10 - 14 V

Fig 2: Identifying MFD Connector Terminal

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Contents
1	Battery power supply
2	GND
3	Ignition power supply
4	Steering switch communication line (-)
5	CAN communication line (-)
6	CAN communication line (+)
9	UART (meter)
12	Steering switch communication line (+)

Terminal No.	Item	Measuring condition	Standard
1 (+B) ←→ Chassis ground	Voltage	Always	10 - 14 V
2 (GND) ←→ Chassis ground	Resistance	Always	Less than 1 Ω
3 (IGN) ←→ Chassis ground	Voltage	IG OFF → ON	0 V → 10 - 14 V
4 (STR-) ←→ Chassis ground	-	Cannot be measured (steering switch communication line)	-
5 (CAN-) ←→ Chassis ground	-	Cannot be measured (CAN communication line)	-
6 (CAN+) ←→ Chassis ground	-	Cannot be measured (CAN communication line)	-
9 (UART) ←→ Chassis ground	-	Cannot be measured (meter communication line)	-
10 ←→ Chassis ground	Voltage	Passenger's airbag ON indicator (when illuminating)	Less than 1 V
11 ←→ Chassis ground	Voltage	Passenger's airbag OFF indicator (when illuminating)	Less than 1 V
12 (STR+) ←→ Chassis ground	-	Cannot be measured (steering switch communication line)	-