Fig 1: Identifying AT Shift Lock Control System Connector Terminals

Courtesy of SUBARU OF AMERICA, INC.

Item	To connector No.	Terminal No.	Input/Output signal
Item	To connector No.	Terminal No.	Measured value and measuring conditions
Battery power supply	B281	1	9 - 16 V
	B281	2
	B280	7
Ignition power supply	i84	1	9 - 16 V when ignition switch is at ON or START.
ACC power supply	i84	24	9 - 16 V when ignition switch is at ACC.
TCM ("P" range)	B280	20	Can not be measured because of digital communication
TCM ("P" range)	B280	30	Can not be measured because of digital communication
Stop light switch	B281	23	8 V or more when stop light switch is ON. 0 V when stop light switch is OFF.
"P" range switch	B281	13	0 V when select lever is in "P" range. 9 - 16 V when select lever is in other positions than "P" range.
Shift lock solenoid signal	B280	6	9 - 16 V when shift lock is released. 0 V when shift lock is operating.
Key warning switch signal	B281	7	9 - 16 V when key is inserted. 0 V when key is removed.
Key lock solenoid signal	B280	5	6 - 16 V when ignition switch is turned ON, with select lever in "P" range and brake switch ON. 0 V at other conditions than above.
Ground	B280	22	-
	i84	21
	B281	8
	B281	9
Delivery (test) mode connector	i84	3	When the delivery (test) mode connector is disconnected: 9 - 16 V When the delivery (test) mode connector is connected: 0 V

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Electrical Specification