DTC B2276 Acc Relay Off Signal: 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: EJ

Fig 2: Push Button Start System Wiring Diagram (Engine Type EJ)
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 HARNESS. Disconnect the keyless access CM (Control Module) connector and ECM connector. Using a tester, measure the resistance between the keyless access CM (Control Module) connector and ECM. Connector & terminal Engine type: FA (B573) No. 28 - (B134) No. 2: Engine type: EJ (B573) No. 28 - (B135) No. 32:	Is the resistance less than 1 Ω?	Go to step 3.	Repair or replace the open circuit of harness.
3 CHECK HARNESS. Using a tester, measure the resistance between the keyless access CM (Control Module) connector and chassis ground. Connector & terminal (B573) No. 28 - Chassis ground:	Is the resistance 10 kΩ or more?	Go to step 4.	Repair or replace the short circuit of the harness.
4 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 5.	Repair or replace the open circuit of harness.
5 CHECK KEYLESS ACCESS CM (Control Module). Connect the keyless access CM (Control Module) connector and ECM connector. Using a tester, measure the voltage between terminals of the keyless access CM (Control Module) connector when the push button ignition switch is pressed, while depressing the brake pedal with the shift lever in the "P" range (for CVT model) or while depressing the clutch pedal (for MT model). Connector & terminal (B573) No. 28 (+) - (B572) No. 11 (-):	Is the voltage 9.5 - 16 V → 1 V or less?	Replace the keyless access CM (Control Module). < Ref. to KEYLESS ACCESS CM (Control Module) . >	Replace the ECM. < Ref. to REMOVAL , Engine Control Module (ECM). > < Ref. to REMOVAL , Engine Control Module (ECM). >