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Home >> Subaru >> 2017 >> Legacy 2.5i Limited >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Security And Locks - Keyless Access (W/Push Button Start) (Diagnostics) >> Diagnostics with Phenomenon >> Inspection >> The Steering Lock Does Not Operate

The Steering Lock Does Not Operate

CAUTION: When the keyless access Control Module or steering lock 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 DTC. 
Read DTCs of «Keyless Access with Push Button Start» using the Subaru Select Monitor. Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) 
Is DTC displayed? Perform the diagnosis for the displayed DTCs. Go to step
2 CHECK CURRENT DATA. 
  1. Display the current data «Driver's door SW input» of body integrated unit using Subaru Select Monitor. Ref. to READ CURRENT DATA
  2. Read the data when opening and closing the driver's door.
Does the data change from ON to OFF according to the opening and closing? Go to step Inspect door switch circuit.
3 CHECK CURRENT DATA. 
Display the current data «Shift P Signal» of «Keyless Access with Push Button Start» using Subaru Select Monitor. Ref. to READ CURRENT DATA 
Is the status displayed correctly when the shift lever is shifted from P to other than P? Go to step Check the P range switch and harness.
4 CHECK CURRENT DATA. 
Using the Subaru Select Monitor, display the current data «Code collation result between smart ECM and ID code box» under «Keyless Access with Push Button Start». Ref. to READ CURRENT DATA 
Is the status normal? Go to step Replace the keyless access Control Module. Ref. to REMOVAL , Keyless Access Control Module.
5 CHECK CURRENT DATA. 
Using the Subaru Select Monitor, display the current data «Code collation result between steering locked ECM and ID code box» of «Keyless Access with Push Button Start». Ref. to READ CURRENT DATA 
Is the status normal? Go to step Replace the steering lock Control Module. Ref. to REMOVAL , Steering Lock Control Module.
6 CHECK CURRENT DATA. 
  1. Display the current data «Steering lock lock/unlock command reception history» of «Keyless Access with Push Button Start» using Subaru Select Monitor. Ref. to READ CURRENT DATA 
  2. While in possession of the access key, perform engine start operations, and read data within 10 seconds after starting.
Is data displayed as ON? Go to step Replace the keyless access Control Module. Ref. to REMOVAL , Keyless Access Control Module.
7 CHECK STEERING LOCK CONTROL MODULE. 
Using a tester, measure the waveform between steering lock Control Module terminals immediately after the following operations.
Perform ignition ON, driver's side door close → shift lever "P" range, ignition OFF, and close → open the driver's side door.
Connector & terminal 
(i47) No. 3 - (i47) No. 1: 
Is the waveform immediately after opening the driver's side door abnormal? Replace the steering lock Control Module. Ref. to REMOVAL , Steering Lock Control Module. Go to step
8 CHECK WIRING HARNESS (OPEN). 
  1. Disconnect the keyless access Control Module connector and the steering lock Control Module connector.
  2. Using a tester, check continuity between the keyless access Control Module connector and steering lock Control Module connector.

    Connector & terminal 

    (i47) No. 3 - (i75) No. 9: 

Is there continuity? Go to step Repair or replace the open circuit of harness.
9 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? Replace the keyless access Control Module. Ref. to REMOVAL , Keyless Access Control Module. Repair or replace the open circuit of harness.