DTC B2285: Steering Lock Position Signal Abnormal: Wiring Diagram

WARNING: This page is about a different car, the 2014 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Push button start system < Ref. to WIRING DIAGRAM , Push Button Start System. >

Fig 1: Keyless Access control module - Wiring Diagram (DTC B2285)

Courtesy of SUBARU OF AMERICA, INC.

DTC 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.	Is B2785 displayed?	Perform the inspection according to B2785. < Ref. to DTC B2785 LIN COMMUNICATION ERROR , 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. 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. < Ref. to REMOVAL , Steering Lock CM. >
4 CHECK CURRENT DATA. Confirm the current data display of keyless access system using Subaru Select Monitor. 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. < Ref. to REMOVAL , Keyless Access CM. >	Go to step 5 .
5 CHECK FUSE. Check the 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 connector. Using a tester, measure the voltage between keyless access CM 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 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 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. < Ref. to REMOVAL , Steering Lock CM. >
9 CHECK HARNESS. Disconnect the keyless access CM connector. Disconnect the steering lock CM connector. Using a tester, measure the resistance between the keyless access CM connector and steering lock CM. 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 connector and chassis ground. Connector & terminal (B574) No. 26 - Chassis ground:	Is the resistance 10 kΩ or more?	Replace the keyless access CM. < Ref. to REMOVAL , Keyless Access CM. >	Repair or replace the short circuit of the harness.