Power Will Not Turn On (Both Accessory And Ignition)

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.

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 POWER SUPPLY. Remove IG relay 1 (push button start), IG relay 2 (push button start) and accessory relay (push button start). Using a tester, measure the voltage between the relay block connector and chassis ground.	Is the voltage 10 V or more?	Go to step 3	Check the DC power supply circuit.
3 CHECK CONNECTOR. Check the engagement of each connector and terminal for any deformation or looseness.	Is the check result OK?	Go to step 4	Repair the connector, or replace harness.
4 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 5	Repair or replace the open circuit of harness.
5 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 6	Repair or replace the open circuit of harness.
6 CHECK DTC. Connect the keyless access Control Module connector. Carrying the access key, depress the brake pedal (except for MT model) or clutch pedal (MT model), and push the push button ignition switch. Read DTCs of «Keyless Access with Push Button Start» using the Subaru Select Monitor. Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC)	Are any DTCs displayed?	Perform the diagnosis for the displayed DTCs.	Go to step 7
7 CHECK CURRENT DATA. Display the current data «Push start SW 1» and «Push start SW 2» of «Keyless Access with Push Button Start» using Subaru Select Monitor. Ref. to READ CURRENT DATA Read the data when pressing the push button ignition switch. Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC)	Does it change from OFF to ON along with the operation?	Go to step 8	Go to step 13
8 CHECK RELAY (PUSH BUTTON START). Check IG relay 1 and 2 (push button start), and accessory relay (push button start). Ref. to RELAY AND FUSE	Is the check result OK?	Go to step 9	Replace the faulty relay.
9 CHECK WIRING HARNESS (OPEN). Disconnect the keyless access Control Module connector, IG relay 1 (push button start), IG relay 2 (push button start) and accessory relay (push button start). Using a tester, check continuity between terminals of keyless access Control Module connector, IG relay 1 (push button start), IG relay 2 (push button start) and accessory relay (push button start). Connector & terminal (i75) No. 12 - (i265) No. 4: (i75) No. 11 - (i137) No. 12: (i75) No. 23 - (i137) No. 2:	Is there continuity?	Go to step 10	Repair or replace the open circuit of harness.
10 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. 12 - Chassis ground: (i75) No. 11 - Chassis ground: (i75) No. 23 - Chassis ground:	Is there continuity?	Repair or replace the short circuit of the harness.	Go to step 11
11 CHECK WIRING HARNESS (OPEN). Using a tester, check the continuity between F/B connector and chassis ground. Connector & terminal (i136) No. 6 - Chassis ground:	Is there continuity?	Go to step 12	Repair or replace the open circuit of harness.
12 CHECK KEYLESS ACCESS CONTROL MODULE. Connect all the disconnected connectors. 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. 12 (+) - Chassis ground (-): (i75) No. 11 (+) - Chassis ground (-): (i75) No. 23 (+) - Chassis ground (-):	Did the voltage change from 1 V or less to +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
13 CHECK PUSH BUTTON IGNITION SWITCH. Disconnect the push button ignition switch connector. Using a tester, check the continuity between the push button ignition switch connector terminals. Terminals No. 7 - No. 5: No. 2 - No. 5:	When the button was pressed, did it change to continuity exists? (No continuity when button is released)	Go to step 14	Replace the push button ignition switch. Ref. to REMOVAL , Push Button Ignition Switch.
14 CHECK WIRING HARNESS (OPEN). Using a tester, check the continuity between the push button ignition switch connector and chassis ground. Connector & terminal (i150) No. 4 - Chassis ground: (i150) No. 5 - Chassis ground:	Is there continuity?	Go to step 15	Repair or replace the open circuit of harness.
15 CHECK WIRING HARNESS (OPEN). Disconnect the keyless access Control Module connector. Using a tester, check continuity between the keyless access Control Module connector and the push button ignition switch connector. Connector & terminal (i150) No. 7 - (i75) No. 4: (i150) No. 2 - (i75) No. 17:	Is there continuity?	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.	Repair or replace the open circuit of harness.