Check Shift Lock Control System

Trouble symptom: 

The select lever cannot be shifted from P range.

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 .