DTC B2275 Engine Start Request Control Circuit: Wiring Diagram

WARNING: This page is about a different car, the 2016 Subaru Outback and 2016 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For the coupling connector, refer to "WIRING SYSTEM".
Keyless access with push button start system < Ref. to appropriate wiring diagram in SYSTEM WIRING DIAGRAM article. >

Fig 1: Engine Start Request Control - Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTICS 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 FUSE. Remove the fuse. < Ref. to INSPECTION , Relay and Fuse. >	Is the fuse OK?	Go to step 3 .	Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short-circuited.
3 CHECK HARNESS. Disconnect the keyless access control module connector and ECM connector. Using a tester, measure the resistance between the keyless access control module connector and ECM. Connector & terminal (i241) No. 35 - (B134) No. 46:	Is the resistance less than 1 Ω?	Go to step 4 .	Repair or replace the open circuit of harness.
4 CHECK HARNESS. Using a tester, measure the resistance between the keyless access control module connector and chassis ground. Connector & terminal (i241) No. 21 - Chassis ground: (i75) No. 1 - Chassis ground:	Is the resistance less than 1 Ω?	Go to step 5 .	Repair or replace the open circuit of harness.
5 CHECK HARNESS. Using a tester, measure the resistance between the keyless access control module connector and chassis ground. Connector & terminal (i241) No. 35 - Chassis ground:	Is the resistance 10 kΩ or more?	Go to step 6 .	Repair or replace the short circuit of the harness.
6 CHECK KEYLESS ACCESS CONTROL MODULE. Connect the keyless access control module connector and ECM connector. Place the access key in the passenger room. Using a tester, measure the voltage between the terminals of keyless access control module connector. Connector & terminal (i241) No. 35 (+) - (i241) No. 21 (-):	Does the voltage change as 2 V or less → 9 V or more when the push button ignition switch is turned on while depressing the brake pedal with the shift position in P or N (AT model) or while depressing clutch pedal (MT model)?	Perform inspection according to the diagnosis of engine. < Ref. to PROCEDURE , Diagnostics for Engine Starting Failure. > < Ref. to PROCEDURE , Diagnostics for Engine Starting Failure. >	Replace the keyless access control module. < Ref. to KEYLESS ACCESS CONTROL MODULE . >