Power Will Not Turn On (Accessory Turns On, But Ignition Does Not Turn On)

CAUTION:

When the keyless access Control Module is replaced with a new unit, and the battery ground terminal is connected, it will become ignition ON. Also, if the battery is disconnected, it will resume to a condition with the battery cut off.
When the keyless access Control Module is replaced, registration of the immobilizer is required. For the relevant procedures, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.

Wiring diagram:

NOTE: For the coupling connector, refer to "WIRING SYSTEM".

Keyless access with push button start system Ref. to WIRING DIAGRAM , Keyless Access With Push Button Start System.

Fig 1: Ignition Relay Control Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

Step	Check	Yes	No
1 CHECK FUSE. Check the fuse. Ref. to INSPECTION , Relay and Fuse.	Is the check result OK?	Go to step 2	Replace the fuse.
2 CHECK CONNECTOR. Check the engagement of each connector and terminal for any deformation or looseness.	Is the check result OK?	Go to step 3	Repair the connector, or replace harness.
3 CHECK WIRING HARNESS (OPEN). Disconnect the keyless access Control Module connector. Using a tester, measure the voltage between the keyless access Control Module connector and chassis ground. Connector & terminal (i75) No. 24 (+) - Chassis ground (-): (i241) No. 40 (+) - Chassis ground (-):	Is the voltage between 8 V and 16 V?	Go to step 4	Repair or replace the open circuit of harness.
4 CHECK WIRING HARNESS (OPEN). Using a tester, check continuity between the keyless access Control Module connector and chassis ground. Connector & terminal (i241) No. 21 - Chassis ground: (i75) No. 1 - Chassis ground:	Is there continuity?	Go to step 5	Repair or replace the open circuit of harness.
5 CHECK IG RELAY 1 AND 2 (PUSH BUTTON START). Check IG relay 1 (push button start) and IG relay 2 (push button start). Ref. to RELAY AND FUSE	Is the check result OK?	Go to step 6	Replace the relay.
6 CHECK WIRING HARNESS (OPEN). Disconnect the keyless access Control Module connector and F/B connector. Using a tester, check continuity between keyless access Control Module connector and F/B connector. Connector & terminal (i75) No. 11 - (i137) No. 12: (i75) No. 12 - (i265) No. 4:	Is there continuity?	Go to step 7	Repair or replace the open circuit of harness.
7 CHECK WIRING HARNESS (GROUND SHORT CIRCUIT). Using a tester, check continuity between the keyless access Control Module connector and chassis ground. Connector & terminal (i75) No. 11 - Chassis ground: (i75) No. 12 - Chassis ground:	Is there continuity?	Repair or replace the short circuit of the harness.	Go to step 8
8 CHECK KEYLESS ACCESS CONTROL MODULE. Connect the keyless access Control Module connector. Using a tester, measure the voltage between the keyless access Control Module connector and chassis ground when the ignition is turned from OFF to ON. Connector & terminal (i75) No. 11 (+) - Chassis ground (-): (i75) No. 12 (+) - Chassis ground (-):	Did the voltage change from 1 V or less → +B-2 V or more?	The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again. NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.	Replace the keyless access Control Module. Ref. to KEYLESS ACCESS CONTROL MODULE