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Check Shift Lock Control System

Trouble symptom: 

The select lever cannot be shifted from P range.

NOTE: Before checking DTC, perform the "Basic Diagnostic Procedure" of "BODY CONTROL (DIAGNOSTICS)". Ref. to BODY CONTROL (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .
  1. CHECK DTC  .
    1. Turn the ignition switch to ON.
    2. Using the Subaru Select Monitor, read all DTCs. Ref. to LAN SYSTEM (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

    Is DTC displayed?

    Yes:  Perform the diagnosis for the displayed DTCs.

    No:  Go to  2.

  2. CHECK BODY INTEGRATED UNIT CUSTOMIZATION  .

    Using Subaru Select Monitor, make sure the [Customize] settings of [Body Control] correspond to the vehicle. Ref. to BODY CONTROL (DIAGNOSTICS)>CUSTOMIZE .

    Is the setting of [MT/AT Setting] equal to "AT"?

    Yes:  Go to  3.

    No:  Set to "AT".

  3. CHECK DATA MONITOR  .

    Using Subaru Select Monitor, display [Stop Light Switch] in [Data monitor] of [Body Control]. Ref. to COMMON (DIAGNOSTICS)>DATA MONITOR .

    Does the [Stop Light Switch] display change according to brake pedal operation?

    Yes:  Go to  4.

    No:  Check the stop light system. Ref. to LIGHTING SYSTEM>STOP LIGHT SYSTEM .

  4. CHECK DTC  .
    1. Maintain the brake pedal depressed for one second or more.
    2. Read the DTC of [Body Control] using the Subaru Select Monitor. Ref. to COMMON (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

    Is DTC B1016 displayed? (Current code)

    Yes:  Perform the diagnosis for DTC B1016. Ref. to BODY CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

    No:  Go to  5.

  5. CHECK DATA MONITOR  .

    Using Subaru Select Monitor, display [Shift Position] in [Data monitor] of [Body Control]. Ref. to COMMON (DIAGNOSTICS)>DATA MONITOR>OPERATION .

    Is "P" displayed?

    Yes:  Go to  8.

    No:  Go to  6.

  6. CHECK "P RANGE" SWITCH  .

    Check the "P range" switch. Ref. to CONTROL SYSTEMS>SHIFT LOCK SOLENOID AND P RANGE SWITCH>INSPECTION .

    Is the check result OK?

    Yes:  Go to  7.

    No:  Replace the "P range" switch. Ref. to CONTROL SYSTEMS>SHIFT LOCK SOLENOID AND P RANGE SWITCH .

  7. CHECK HARNESS  .

    Check the harness for "P range" switch lines. Ref. to WIRING SYSTEM>SHIFT LOCK CONTROL SYSTEM>WIRING DIAGRAM .

    Is the check result OK?

    Yes:  Go to  8.

    No:  Repair or replace the harness.

  8. CHECK SELECT LEVER ROD  .

    Check the installation condition of the select lever rod.

    Is the installation condition OK?

    Yes:  Go to  9.

    No:  Install the select lever rod properly.

    NOTE: Make sure there is no bend or damage on the select lever rod.
  9. CHECK SELECT LEVER  .
    1. Disconnect the select lever rod from the transmission main body. Ref. to CONTROL SYSTEMS>SELECT LEVER ROD>REMOVAL .
    2. Shift the select lever to another range.

    Does the select lever shift?

    Yes:  Repair the transmission body. Ref. to AUTOMATIC TRANSMISSION>TRANSMISSION ASSEMBLY>REMOVAL .

    No:  Go to  10.

  10. CHECK SELECT LEVER  .

    Check the select lever. Ref. to CONTROL SYSTEMS>SELECT LEVER .

    Is the check result OK?

    Yes:  Replace the keyless access control module. Ref. to SECURITY AND LOCKS>KEYLESS ACCESS CM .

    No:  Replace the select lever. Ref. to CONTROL SYSTEMS>SELECT LEVER .

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