The Steering Lock Is Not Released

Trouble causes:

ECM failure
Steering lock circuit failure
Steering lock control module failure
Keyless access control module failure

CAUTION:

Check that there are no other registered access keys inside the vehicle.
Check that the keyless access function is not stopped.
Inspect LAN system or keyless access with push button start system according to the basic diagnostic procedure, and make sure that DTC is not input.
For replacement procedure of keyless access control module or steering lock control module, refer to the "REGISTRATION INSTRUCTIONS FOR IMMOBILIZER" provided as a separate volume.
Before performing diagnosis, refer to "CAUTION" in "General Description". Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

CHECK OPERATION.
1. Depress the brake pedal (CVT model) or clutch pedal (MT model).
2. While turning the steering wheel lightly to the left and right, press the push button ignition switch.
3. Confirm that the steering lock is released and the engine starts.
  Does the engine fail to start with the steering lock released?
  
  Yes: Perform the diagnosis for engine system. Refer to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>DIAGNOSTICS FOR ENGINE STARTING FAILURE>PROCEDURE . Refer to ENGINE (DIAGNOSTICS) (STI)>DIAGNOSTICS FOR ENGINE STARTING FAILURE>PROCEDURE .
  
  No: Go to 2.
CHECK DTC.
Read DTCs of «Keyless Access with Push Button Start» using the Subaru Select Monitor. Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

Are any DTCs displayed? (Current malfunction)

Yes: Perform the diagnosis for the displayed DTCs.

No: Go to 3.
CHECK DATA MONITOR.
1. Using the Subaru Select Monitor, check the following items on «Data monitor» of «Keyless Access with Push Button Start». Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>DATA MONITOR .
  - «Steering lock unlock request reception status»
  and
  - «Steering lock lock/unlock command reception history»
2. Read the data when the push button ignition switch is pressed while in possession of the access key. (Maintain for 10 seconds after switch operation)
  Does the data change from "Not yet received" to "Reception", and from "OFF" to "ON"?
  
  Yes: Go to 4.
  
  No: Go to 7.
CHECK HARNESS (OPEN CIRCUIT).
1. Disconnect the steering lock control module connector.
2. Using a tester, measure the voltage between the steering lock control module connector and chassis ground.
  Connector & terminal
  
  (B424) No. 7 (+) - Chassis ground (-):
  
  Is the voltage 10 V or more?
  
  Yes: Go to 5.
  
  No: Repair or replace the open circuit of harness.
CHECK HARNESS (OPEN CIRCUIT).
Using a tester, check continuity between the steering lock control module connector and chassis ground.

Connector & terminal

(B424) No. 1 - Chassis ground:

Is there continuity?

Yes: Go to 6.

No: Repair or replace the open circuit of harness.
CHECK STEERING LOCK control module.
1. Connect the disconnected connectors.
2. Using a tester, measure the voltage between steering lock control module terminals right after the ignition switch is turned to ON.
  Connector & terminal
  
  (B424) No. 3 (+) - (B424) No. 1 (-):
  
  Is the voltage 1 V or less right after the ignition ON?
  
  Yes: Replace the steering lock control module. Refer to SECURITY AND LOCKS>STEERING LOCK control module .
  
  No: Repair or replace the open circuit of harness.
CHECK DATA MONITOR.
1. Using the Subaru Select Monitor, check the following items on «Data monitor» of «Keyless Access with Push Button Start». Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>DATA MONITOR .
  - «Code collation result between smart ECM and ID code box»
  Is data displayed as being normal?
  
  Yes: Go to 9.
  
  No: Go to 8.
CHECK DATA MONITOR.
1. Replace with a properly functioning or new ID code box. Refer to SECURITY AND LOCKS>ID CODE BOX .
2. Using the Subaru Select Monitor, check the following items on «Data monitor» of «Keyless Access with Push Button Start». Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>DATA MONITOR .
  - «Code collation result between smart ECM and ID code box»
  Is data displayed as being normal?
  
  Yes: 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.
  
  No: Replace the keyless access control module. Refer to SECURITY AND LOCKS>KEYLESS ACCESS control module .
CHECK DATA MONITOR.
1. Using the Subaru Select Monitor, check the following items on «Data monitor» of «Keyless Access with Push Button Start». Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>DATA MONITOR .
  - «Code collation result between steering locked ECM and ID code box»
  Is data displayed as being normal?
  
  Yes: 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.
  
  No: Go to 10.
CHECK ID CODE BOX.
1. Replace with a properly functioning or new ID code box. Refer to SECURITY AND LOCKS>ID CODE BOX .
2. Using the Subaru Select Monitor, check the following items on «Data monitor» of «Keyless Access with Push Button Start». Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>DATA MONITOR .
  - «Code collation result between steering locked ECM and ID code box»
  Is data displayed as being normal?
  
  Yes: 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.
  
  No: Go to 11.
CHECK STEERING LOCK control module.
1. Replace with a properly functioning or new steering lock control module. Refer to SECURITY AND LOCKS>STEERING LOCK control module .
2. After registering, the steering lock operates when the ignition is turned to OFF and the driver's door is opened and closed.
3. Turn the ignition to ON.
4. Operate the steering and check for whether the steering lock is released.
  Is the steering lock released, and does the engine start?
  
  Yes: Replace the steering lock control module. Refer to SECURITY AND LOCKS>STEERING LOCK control module .
  
  No: Replace the keyless access control module. Refer to SECURITY AND LOCKS>KEYLESS ACCESS control module .