DTC B2285 Steering Lock Position Signal Correlation: Wiring Diagram

Push button start system wiring diagram. Refer to appropriate SYSTEM WIRING DIAGRAMS article.

Engine type: FA

Fig 1: Push Button Start System Wiring Diagram (Engine Type FA)
Courtesy of SUBARU OF AMERICA, INC.
Engine type: FA

Fig 2: Push Button Start System Wiring Diagram (Engine Type FA)
Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK LAN SYSTEM. Inspect LAN system. < Ref. to PROCEDURE , Basic Diagnostic Procedure. >	Is LAN system normal?	Go to step 2.	Perform the inspection according to the diagnosis for LAN system.
2 CHECK DTC. Use the Subaru Select Monitor and read DTCs. < Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) . >	Is B2785 displayed?	Perform the inspection according to B2785. < Ref. to DTC B2785 LIN COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >	Go to step 3.
3 CHECK CURRENT DATA. Confirm the current data display of keyless access system using Subaru Select Monitor. < Ref. to READ CURRENT DATA . > When locked: Lock side sensor status: ON Unlock side sensor status: OFF Lock confirmation: Confirmed Unlock confirmation: Not confirmed When unlocked: Lock side sensor status: OFF Unlock side sensor status: ON Lock confirmation: Not confirmed Unlock confirmation: Confirmed NOTE: To lock the steering lock, turn off the power, and open → close, or close → open the driver's door. To unlock the steering lock, turn the ignition switch to ACC ON or IGN ON.	Are the readings as shown on the left according to the steering lock status?	Go to step 4.	Replace the steering lock CM (Control Module). < Ref. to REMOVAL , Steering Lock CM (Control Module). >
4 CHECK CURRENT DATA. Confirm the current data display of keyless access system using Subaru Select Monitor. < Ref. to READ CURRENT DATA . > When locked: Steering unlock switch: OFF When unlocked: Steering unlock switch: ON NOTE: To lock the steering lock, turn off the power, and open → close, or close → open the driver's door. To unlock the steering lock, turn the ignition switch to ACC ON or IGN ON.	Are the readings as shown on the left according to the steering lock status?	Replace the keyless access CM (Control Module). < Ref. to REMOVAL , Keyless Access CM (Control Module). >	Go to step 5.
5 CHECK FUSE. Check the fuse. < Ref. to RELAY AND FUSE . >	Is the fuse OK?	Go to step 6.	Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short-circuited.
6 CHECK HARNESS. Disconnect the keyless access CM (Control Module) connector. Using a tester, measure the voltage between keyless access CM (Control Module) connectors. Connector & terminal (B572) No. 2 (+) - Chassis ground (-):	Is the voltage 9.5 - 16 V?	Go to step 7.	Check the power supply circuit.
7 CHECK HARNESS. Using a tester, measure the resistance between the keyless access CM (Control Module) connector and chassis ground. Connector & terminal (B572) No. 11 - Chassis ground:	Is the resistance less than 1 Ω?	Go to step 8.	Repair or replace the open circuit of harness.
8 CHECK HARNESS. Using a tester, measure the resistance between the steering lock CM (Control Module) connector and chassis ground. Connector & terminal (B424) No. 4 - Chassis ground:	Does the following occur? Steering lock: 10 kΩ or more → Steering unlock: less than 1 Ω	Go to step 9.	Replace the steering lock CM (Control Module). < Ref. to REMOVAL , Steering Lock CM (Control Module). >
9 CHECK HARNESS. Disconnect the keyless access CM (Control Module) connector. Disconnect the steering lock CM (Control Module) connector. Using a tester, measure the resistance between the keyless access CM (Control Module) connector and steering lock CM (Control Module). Connector & terminal (B574) No. 26 - (B424) No. 4:	Is the resistance less than 1 Ω?	Go to step 10.	Repair or replace the open circuit of harness.
10 CHECK HARNESS. Using a tester, measure the resistance between the keyless access CM (Control Module) connector and chassis ground. Connector & terminal (B574) No. 26 - Chassis ground:	Is the resistance 10 kΩ or more?	Replace the keyless access CM (Control Module). < Ref. to REMOVAL , Keyless Access CM (Control Module). >	Repair or replace the short circuit of the harness.